Monthly Memoranda (points for propaganda)

Memoranda, primarily aimed at sales staff, giving updates of products and sales campaigns, often illustrated with photographs, graphs, tables and adverts.

Index as follows:

Alum Precipitated Toxoid 9, 199
Anaesthesia 45
Auricular Fibrillation - The Treatment of 81
Additive Effect of Calcium and Digitalis 82
Advertisement and products 87
Acetylcholine Bromide 118, 156
Acetylcholine - Tobacco Amblyopia 126
Alkaline Co. Eff. 'Tabloid' - Sea Sickness 129
'Alepol' & 'Moogrol' - Treatment of Leprosy 132-133
Allergic Reactions to the Schick Test 150
Administration of Iron 151
Artificial and Natural Foods 153
Aspirin & 'Tannafax' as Dental Dressing 167
Auricular Fibrillation - Digoxin 169
Asthma - Treatment of 185
Adrenalin - Treatment of Asthma 185
Air-Raid Precautions 190-193
Ascorbic Acid - 'Tabloid' 193
'Agla' Surgical Needles 204
p-Aminobenzenesulphonamide 206-210
Anaemias - Classification of 210
Anaemias and their Treatment 212
Alkaline Co. Eff. 'Tabloid' 219
Artlino Snow (Apology) 227
Asthma - Ephedrine Hydrochloride 230
Abrasions 'Tannafax' 232
Adrenal Glands - Some Notes on the 237
Adrenaline - Chemistry of 238
Adrenaline 238-241
Aiding Photographic Business 245
Ancient Coronation Ceremonies 255
A. P. T. Immunisation against Diphtheria with 264, 343
Appreciation of Gas Gangrene Antitoxin Serum 316
Antiseptics 323-327
A. P. T. - Hundred per cent. Successful Results with 330
Advertised Preparation - Truth about a much 331
Age Cannot Stale 'Rytol' 359

Blaud Pill 10, 225
B. W. & Co. New York - New Exhibition Galleries 16-18
Burns - 'Tannafax' in the Treatment of 43, 63, 64, 65, 66, 291, 131, 132, 167, 313-314, 329
Boils - Treatment with Staphylococcus Toxoid 46
Blaud Pill & Copper 'Tabloid' 48
Boat Race - 'Kepler' Cod Liver Oil with Malt Extract 52-53
Bombay Representatives reports 65
Bismuth Salts - 'Wellcome' Brand 67
B. W. & Co. Policy 68-73
Byrd Transatlantic Flight 1927 74, 103
Bronchi - Functions of the 74
Bronchopneumonia in a Child - Illustration 78
Bursae by Infection - Treatment 148
Bad Advice - 'W' P. E. C. 204
Bismuth 228
B. W. & Co. Products 229
Bismuth Salts & Sodium Salicylate Alkaloids 237
Blood Corpuscles - Red 258-262
Bombay House Reports 271-272
B. W. & Co. Quality - Supreme Quality is 287
Belfast Medical Exhibitions at 292
Bournemouth - Veterinary Exhibition at 293
Black Bag - The 358

Chloroform - 'Wellcome' Brand 9
Candid Applause - 'W' P. E. C. 11-13
Cardiac Infections - Some of the Commoner 21
Correct Dosage 29
Chemist. The - and Poisons 36
Cambridge Boat Race Crew and 'Kepler' Cod Liver Oil with Malt Extract 52
Cardiac Failure - Treatment of 62
Croix d'Officier de la Legion d'Honneur conferred upon Sir Henry Wellcome 67
Cat Bite Disease - Rat Bite Fever 80
Calcium and Digitalis - The Additive Effect of 82
Chemistry of the Vitamins 94
Cancerous Growths - Snake Venom and 99
Cobra Venom 99
Comendador de la Ordre de la Republica conferred upon Sir Henry Wellcome 104
Chloral Hydrate on the Heart - The Effect of 111
Calcium Sulphide - Puerperal Sepsis 128
Calcium Gluconate & Iron (Eff.) 'Tabloid' 130, 225
Clinical Value of 'Tannafax' 179
Colour Photography 205
Chemotherapy Progress in the Treatment of Haemolytic Streptococci 206
Calcium Treatment in Nocturnal Incontinence 212
Chemotherapy - Development of 222
Chemistry of Adrenaline 238
Chilblains 'Hypoloid' Acetylcholine Bromide 243
Cat Distemper 249
Caffeine Citrate 'Wellcome' Brand 275
Central Africa - A Quaint Communication 277
Carbohydrate Metabolism 280-283
Croix de Chevalier de la Legion d'Honneur awarded to Mr. Pearson 320
Cholecystitis - Inflammation of Gall Bladder 336

Diabetic Children - Unrestricted Diet for 6
Digoxin 'Tabloid' & 'Hypoloid' 7, 21, 47, 84, 102, 129, 150, 180-181, 216, 232, 265-267, 291, 329, 343
Diphtheria & Concentrated Diphtheria Antitoxin 25-26
Dosage - Correct 29
Dental Field - Progress in the 38
Dogs Life Saved by Hypodermic Amorphine 45
Digitalis 62, 266
Drug Actions on the Autonomic Nervous System 105
Death of Sir Henry Wellcome 120
Drug Actions on the Uterus 121
Death of Dr. H. A. D. Jowett 139
Diuretics 140
Dental Dressing - 'Tannafax' and Aspirin as 167
Digoxin Auricular Fibrillation 169
Digoxin - Some Modern Ideas on Heart Disease 174
Dentists - Routine use of 'Stypven' 175-176
Diphtheria - Prophylaxis of 181
Dietetics 182
Diphtheria A. P. T. 199, 343
Diginutin 220
Development of Chemotherapy 222
Diabetes 'W' B. Protamine Insulin (With Zinc) - Suspension 235, 328-329
Diphtheria Antitoxin Serum 242
Digoxin - Most Satisfactory Digitalis Preparation 244
Danger - Ergot Preparations for Headaches 250
Digoxin - Auricular Flutter 253
Duodenal Ulcers 254, 337
Diphtheria - Immunisation against with A. P. T. 264, 307
Diabetes - Protamine Insulin in Juveniles 275
Desensitiser 'Tabloid' 305
Digoxin - 'Tabloid' and 'Hypoloid' - Tachycardia 312
Diabetes 337
Dermatology - 'Moogrol' 343

Eulykol - Treatment of Lupus Vulgaris 1-3, 391, 283
Ergometrine in Post Partum Haemorrhage 8
Ergometrine 'Hypoloid' & 'Tabloid' 8, 118, 129, 194, 196, 214, 276
'Empirin' Compound 'Tabloid' 14, 15, 18, 19, 40, 41
Everest Mt. Fifth Attempt on 43
Epistaxis Treated with Viper Venom 80
'Empirin' Co. 'Tabloid' - Original Package 88
Ergometrine - English Firms ahead of German 104
Eczema - 'Tannafax' in the Treatment of Weeping 115
Ephedrine in Treatment of Asthma 185
Eulykol 194
Ergometrine - Caesarean Section 196
Ergotamine Tartrate in Migraine 197
Ergotamine Ethanesulphonate 'Tabloid' 198
'Emetine' Hydrochloride 'Wellcome' 203
Exposure in Colour Photography 204
'Enule' 'Hazeline' Compound 220
Ephedrine Hydrochloride 229
Ergotoxine Ethanesulphonate 'Tabloid' - Migraine 231
Effects of Adrenaline 239
Ergometrine 'Hypoloid' - Veterinary Practice 244
Ergot preparations in the Treatment of Migraine 250
Ergometrine 'Hypoloid' - Maternity Cases 267
Electro-cardiogram - Auricular Fibrillation 298
Ergometrine in Migraine 315
'Ernutin' 'Hypoloid' 314-315
Elements of Success 308
Ergotoxine Ethanesulphonate 336

Fifth Attempt on Mount Everest 43
French Tribute to British Research 67
Functions of the Bronchi 74
Fine Grain Developer 'Tabloid' 102
First-Aid Cases - Two New 190
Fine Grain Developer Showcard 'Tabloid' 246
Feline Distemper Vaccine 249
Ferguson W. B. M. 279, 306
Ferrous Chloride - Citrated 'Tabloid' 327

General Trade Price List New Edition 36
Gastric Ulcer Treated with Histidine Hydrochloride 59
Genito-Urinary System 140
Glycosuria 281
Gas-Gangrene Antitoxin Serum - Appreciation of 316
Gonorrhoea - Sulphonamide-P in Treatment of 322-323, 339
Gangrene - Prontosil - Treatment of 338
Gonococcic Infections - Sulphanilamide 339, 348
General Infections - Sulphanilamide 346

Hypoloid Sodium Morrhuate - Varicose Veins 9
Hypodermic Apomorphine Hyd. 'Tabloid' - 25 years old 45
Hyoscine Compound 'Tabloid' Hypodermic 45
"'Hazeline' Snow" Window Display - New 51
Haemopoietic System 54, 59
'Hypoloid' Histidine Hydrochloride 59, 185, 219, 254
Hemophilic haemorrhage - Snake Venoms 98
Heart. The Effect of Choral Hydrate on the 111
Histamine - A Simple Test for Latent Jaundice 114
Horse Fly Bite Treated with 'Tannafax' 115
Hairdressers. Tannafax' used by 115
Histidine Hydrochloride - Peptic Ulcers 123, 184
Half Price Concerns 155
'Hypoloid' Acetylcholine Bromide 159, 243
Heart Disease - Notes on Modern Ideas on 174
Helping the Photographic Dealers 186
'Hypoloid' Ergometrine 196, 267
Hypodermic Ergotoxine Ethanesulphonate 198
Haemolytic Streptococci - An important advance in Chemotherapy 206
'Hypoloid' Calcium Laevulate 213
Hypochromic Anaemia - 'Tabloid' Blaud Pill 219
"'Hazeline' Snow" Imitations - Japan 227
'Hypoloid' Infundin - Treatment of Shock 228
'Hypoloid' Ergometrine in Veterinary Practice 244
'Hypoloid' Digoxin 266, 312
Holiday Photography 278
"'Hazeline' Snow" and Cream for men 287-289
"'Hazeline' Snow - 30 Years Experience 289
Heart Muscle - Structure and Properties of 294-301
Heart - Photographs of 295, 298, 300
'Hypoloid' 'Ernutin' 314-315
Hospital Clinics - Points from 336
'Hexamine - Cholecystitis 336
Hundred per Cent. Successful results with A. P. T. 330
Haematemesis - Vitamin C in 336

Insulin - Its Use and Abuse 30
India - Promptness in Sending Medicine to 44
Insulin - 'W' B. - New Use for 59
Infection - Resistance to 92
Infective Diseases - Treatment of 93
Iron and Liver in Pernicious Anaemia 101
Infection Treatments 145
Iron - The Administration of 151
Immunisation against Diphtheria 199
Iron Therapy - Modern 224
Influenza - ' Tabloid' 'Empirin' Co. 244
Irish Representative's Report 265
Influenza - 'Tabloid' Quinine Belladonna and Camphor 267
Insulin 274
Islets of Langerhans 281
Insulin - Diabetes - Action of 282
Influenzae Meningitis - Sulphonamide-P 352

Jowett Dr. H. A. D. Death of 139 Japan "'Hazeline' Snow" Imitations 227

Key Plan to B. W. & Co. New York Exhibition Galleries 17-18
'Kepler' Cod Liver Oil with Malt Extract 30, 35, 52, 154, 213, 241
Klebs and Loeffler 49
'Kepler' C. L. O. with M. E. - Training for the Boat Race 52
'Kepler' C. L. O. with M. E. - Window Display 170A, 332A
Kidney - Sulphonamide-P in the 263
'Kepler' C. L. O. with M. E. - Vitamins in Modern Diet 341

Lupus Vulgaris - Treatment of 1-3, 90, 283
London Representatives Reports 7, 46, 63, 129, 166, 180, 196, 199, 216-218, 243, 265, 266, 267, 272, 273, 276
Lister Lord 1827-1912 27
Lamb Dysentery - 'W' (Prophylactic) 32
Laveran Alfonse 1845-1922 96
Liver and Iron in Pernicious Anaemia 101
Latent Jaundice - A Simple Test For 113
Leprosy - China 132
Leprosy - 'Moogrol' and 'Alepol' in Treatment of 132
London Medical Exhibition 171-174, 334-336
Legion d'Honneur - Le Croix de Chevalier de la - Mr. Pearson 320

Metal Dental Syringe - 'Tabloid' All 39
Medicine - Self Administered 40
Montreal House Report 43
Medical Equipment for Mt. Everest 44
Mouth - Illustration of - Respiratory System 75
'Moogrol', 'Alepol' - Treatment of Leprosy 132
Manson Patrick 163
Migraine 197-221
More "De Morrhua" 213
Modern Iron Therapy 224
Modern Therapeutic Claims 241
Migraine - Ergot Preparations in the Treatment of 250
Manufacturer and Retailer 268
Monkey - 'Ryzamin-B' and the 273
'Moogrol' - Lupus Vulgaris 283
Medical Exhibitions at Belfast 292
Migraine - Ergometrine in 315
'Moogrol' - Dermatology 343
Meningitis. H. Influenzae - Sulphonamide-P 352

New Campaign - 'T' 'Empirin' Co. 15
New York Exhibition Galleries - B. W. & Co. 16-18
New Ethical Advertising 68
'Neokharsivan' - Rat Bite Treated With 80
Nephritis - 'Tannafax' 102
Nervous System - Drug Actions on the Antonamic 105
Natural Vitamins 127
Natural and Artificial Foods 153
Natural and Synthetic Vitamin D 200
Nocturnal Incontinence - Calcium Treatment 212
New York Monthly Memoranda - Extract From 308
Neuritis - 'Tabloid' Quinine Acetylsalicylate in 315

Original Packages 53, 88, 359
One Shake Diffusion Advertisement 87
Overheard 229

Phenylethyl Hydnocarpate - Lupus Vulgaris 1-3
Pioneers of Bacteriology 3-6, 27-29, 49, 96-97, 163
Pasteur 1822-1895 97, 163
P. E. C. 'W' - Candid Applause 11-14, 85, 169, 220
Photograph - Exhibition Galleries New York 16
Poisons - How the New Regulations will affect the General Practitioner 18-21
Photographs of the Heart 23, 295
Poisons - The Chemist and 36
Progress in the Dental Field 38
Photograph - Dental Products 39
Pain - 'T' 'Empirin' Compound 40
Photograph of Medical Equipment - Mt. Everest 44
Photograph of Mouth 75
Pneumonia - Acute Lobar - Illustration 78
Photographic Notes 85
Pernicious Anaemia - Iron & Liver in 101
Photograph of 'T' Medical Case Carried by Byrd 103
Peptic Ulcer - Histidine Hydrochloride 125, 184
Puerperal Sepsis - Calcium Sulphide as a Prophylactic against 128
Parish Dr. - Schick Test Allergic Reactions 150
Paralysis of the Intestines - Acetylcholine Bromide 159
Photographers Vade Mecum 170
Photograph of London Medical Exhibition Exhibit B. W. & Co. 171
Photograph of Burns Treated with 'Tannafax' 178
Prophylaxis of Diphtheria 181
Photographic Dealer - Helping the 186
Princely Benefaction A 188
Pain 231
P. E. C. 'W' 245, 232-233, 306, 319
Peripheral Neuritis - 'Ryzamin-B' in 243
Protamine Insulin in Juvenile Diabetes 275
Photography - Post Holiday 304
Pearson Mr. - France Honours 320
Protamine Insulin (with Zinc) - Suspension - 'W' B. 328-329
Points from Hospital Clinics 336
Prontosil - Treatment of Gangrene 338
Pharmacological Actions of Sulphonamide-P 354
Practitioner's Equipment 358
Photograph 'Tabloid' 'Rytol' - Old Packing 359
Popularity of the 'W' P. E. C. 360

Quinine Belladonna and Camphor 'Tabloid' 267
Quaint Communication from Central Africa 277

Representatives Reports 41
Respiratory System - Functions of the Bronchi 74
Russell Viper Venom, 52, 59, 272
Rat Bite Fever treated with 'Neokharsivan' 80
'Rytol' 'Tabloid' 85, 305
Robbing the Physician 89
'Ryzamin-B' - New Vitamin Concentrate 156
Routine Use of 'Stypven' Russell Viper Venom 175
'Ryzamin-B' 184, 193, 214, 218, 236, 243, 273, 289, 310-312, 342
'Ryzamin-B' Parkinsonism 229
Reticulo Endothelial System 54
'Ryzamin-B' given to a dog 254
'Rytol' The Romance of 256-257
Red Blood Corpuscles 258-262
'Ryzamin-B' - Veterinary Practice 303, 357
'Rytol' - Age Cannot Stale 359

Staphylococcus Toxoid 'W' Brand - Boils 9
Sodium Morrhuate - Varicose Veins 9
Staphylococcus Toxoid 'W' B. - Septicaemia 10
Subthyroidism - 'T' Thyroid Gland in 10
Sydney Representatives reports 10, 43, 65, 84, 167, 180, 219, 272
Staphylococcus Toxoid 'W' B. 46, 265, 291
'Stypven' 52, 59, 84, 99, 100, 175, 176, 193, 201, 272, 330, 344
Shanghai Representatives reports 66
Some New Drugs and Remedies 68
Strophanthin in the Treatment of Auricular Fibrillation 81
'Stipolac' 85
Snake Venoms as Haemostatic 98
Snake Venoms and Cancerous Growths 99
'Stypven' - Haemophilia - A new method of Application 118
Staphylococcus Toxoid - Safe Antigen 125
Sea Sickness - 'T' Alkaline Co. Eff 129
Schick Test Allergic Reactions to the 150
Some advances in 1936 193
Streptococcal Throat Infections 202
'Stypven' - Dental Use 217
'Saxin' - Superiority of 219
Spring Campaign and After Selling Points 236
'Stypven' Intravenous and Intradermal injections 252
Sulphonamide-P 262, 302, 320-323, 337
Serum Treatment of Tetanus 263
Supreme Quality is B. W. & Co. Quality 287
Structure and Properties of the Heart Muscle 294
Speed Numbers 305
Sulphonamide-P and a Competing Product 307
'Stypven' Russell Viper Venom in Tonsillectomy 315
Sulphonamide & Related Compounds 337
Sulphanilamide - Urinary Infections 338-339
Sulphanilamide - Gonococcic Infections 339, 348
Sulphanilamide - Gonorrhoea 339
Sulphanilamide & Prontosil 340
Sulphanilamide & Streptococci Meningitis 340
Sulphanilamide & Erysipelas 340
Sulphanilamide & Type III Pneumococcus Pneumonia 340
Sulphanilamide & Meningococcus & Pneumococcus Infection (Mice) 340
Sulphanilamide & Haemolytic Streptococcus Infections 340
Sulphanilamide & Streptococcal Infections 340
Sulphanilamide & Typhoid 352
Sulphanilamide & General Infections 346-355
Staphylococcal Infections - The Immunology of 355

'Tannafax' 7, 11, 42, 43, 63, 65, 66, 82, 114, 166, 177, 179, 269-271
Therapeutic Revolution - Unrestricted Diet for Diabetic Children 6
'Tabloid' Thyroid Gland in Subthyroidism 10
'Tabloid' 'Empirin' Compound 15, 18, 19, 40, 41
Therapeutics - Dental Practice 38
'Tabloid' All-Metal Dental Syringe 39, 117, 178, 179
'Tannafax' in the Treatment of Burns 43, 217, 290, 313-314, 329
'Tabloid' Hypodermic Hyoscine Co. 45, 117
Tolamine 46, 143
'Tabloid' Blaud Pill & Copper 48
'Tabloid' Medical Equipment - Byrd Transatlantic Flight 74, 103
'Tannafax' in Treatment of Bed Sores 83
'Tabloid' 'Rytol' 85, 305
'Tannafax' - Nephritis 102
'Tabloid' Fine Grain Developers 102, 246
'Tabloid' Choral Hydrate 112
'Tannafax' - Horse Fly Bite Treated with 115
'Tannafax' - Weeping Eczema Treated with 115
'Tannafax' - Whitlows Treated with 115
'Tannafax' introduced by Local Chemists 117
'Tabloid' 'Tancol' - Keeping Properties of 119
Tobacco Amblyopia 126, 218
'Tabloid' Calcium Sulphide 128
'Tabloid' Calcium Gluconate & Iron (Eff.) 130, 194
'Tabloid' Alkaline Co. Eff 129
'Tabloid' Ephedrine Hydrochloride 130
'Tannafax' in Severe Oxy-Acetylene Burn 131
'Tabloid' Monthly Memoranda (New York) 157, 169
'Tannafax' and 'Aspirin' as Dental Dressing 161
'Tannafax' Nose Plugging 168
'Tabloid' - The Word 186
'Tabloid' Ascorbic Acid 193
'Tannafax' and the Public 198
'Tabloid' Thyroid Gland Original Formula 202
Throat Infections - Streptococcal 202
'Tabloid' Sulphonamide-P 206, 323
'Tabloid' Calcium Lactate 213
'Tabloid' Calcium Gluconate and Calciferol 213
'Tannafax' treatment of Cellulitis and Snake Bite 217
'Tabloid' Blaud Pill 225
'Tabloid' - Always write in full 231
'Tannafax' Abrasions 232
Through Medical Eyes 241
'Tannafax' Chaps etc., 244
'Tabloid' Products - Unconventional Use of 303
'Tabloid' Desensitiser 305
'Tabloid' Glycerol Trinitrate - Angina Pectoris 254
'Tannafax' - Corporal Punishment 255
Tetanus - Serum Treatment of 263
'Tabloid' Quinine & Belladonna 267
'Tannafax' and the Poets 271
'Tabloid' Developers 278-279
'Tannafax' in Gravel Rash 314
'Tabloid' Quinine Acetylsalicylate - Neuritis 315
Tonsillectomy - 'Stypven' 315
'Tannafax' - Irritation 314
'Tabloid' Digoxin 312-313, 329
'Tabloid' Ferrous Chloride, Citrated 327
Truth About a much Advertised Preparation 331
Treatment with Sulphanilamide 346-355
Typhoid - Sulphonamide-P 353
'Tabloid' 'Rytol' - 27 years old 359

Ulcer in Mouth - Treated with Tannafax' 63
Uterus - Drugs Acting on the 121
Urinary Stone Formation 161
Urinary Infections - The Use of Sulphanilamide 338-339

Varicose Veins - 'Hypoloid' Sodium Morrhuate 9
Varicose Veins Infections - The Technique of 60
Viper Venom - Epistaxis treated with 80
Vitamins - Chemistry of 94
Vitamins - Natural 127
Vitamins - 'Ryzamin-B' 156
Vitamin D - Synthetic and Natural 200
Vitamin Concentrates 203
'Vaporole' Aromatic Ammonia 277
Veterinary Exhibition - Bournemouth 293
Vitamin D - Overdosage with 301
Veterinary Therapeutics - Progress in 318
Veterinary Products 318
Vitamins in Modern Diet 341
Vitamin C in Haematemesis 356
Veterinary Work - 'Ryzamin-B' In 357

'Wellcome' Brand Staphylococcus Toxoid - Boils 9
'Wellcome' Brand Chloroform 9
'W' P. E. C. - Candid Applause 11-13
'W' P. E. C. 11-14, 85, 119, 155, 169, 186, 204, 205, 220, 232-233, 245, 278, 306, 309, 319, 344-345
'Wellcome' Lamb Dysentery Prophylactic 32
'Wellcome' Schick Test Products sent to India 51
Window Display - New "'Hazeline' Snow" 51
'Wellcome' Brand Insulin - New Use for 60
Wellcome - Sir Henry. La Croix d'Officier de la Republica 67
'Wellcome' Brand Bismuth Salts 67
'Wellcome' Brand Staphylococcus Toxoid 84, 291
Wellcome Sir Henry. Comendador de la Ordre de la Republica 104
Whitlows - 'Tannafax' in the Treatment of 115
Wellcome Sir Henry. Death of 120
Window Display 170A, 332A
What Can Dietetics do 182
Wellcome Sir Henry. Will of 188
'Wellcome' Emetine Hydrochloride 203
'Wellcome' Brand Protamine Insulin (with Zinc) 235
'Wellcome' Diphtheria Antitoxin Serum 242
Whooping Cough Vaccine - 'W' B. 248
'W' B. Feline Distemper (Ent.) Prophylactic Vaccine (Enteritis) 250
'W' B. Staphylococcus Toxoid. Skin Diseases 265
'W' Brand A. P. T. 267
'Wellcome' Brand Insulin 274
'Wellcome' Brand Caffeine Citrate 275
Why One Out of Every Three Salesman Fails 308-309
'Wellcome' Brand Sulphonamide-P 322
'W' P. E. C. - How It Helps the Photographic Chemist & Dealer 332
'W' P. E. C. - The Book of the Year 360
'W' P. E. C. - In the Peerage 360
'W' P. E. C. - Popularity of the 360

Abbreviations: 'W' P. E. C. = 'Wellcome' Photographic Exposure Calculator

1938-1939

1 item

Copyright assigned to the Wellcome Trust