Elephant's hair. Slide by Topping - x165 - lamp. Beck Intensity and ground glass and wratten 45a filter. Condenser - Leitz 1.4 NA. Camera ext. 215 mm. Plate - Kodak Pan. Exp. 5.75m. Fine grain 1D11. Talen F.C. Griggs 29.9.48 op.lat. Top lens removed. OBJ. Watson Holes 12mm. 0.65 N.n. used 182 mm. thickcore Eyepiece x 14.

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Licence: Attribution 4.0 International (CC BY 4.0)

Credit: Elephant's hair. Slide by Topping - x165 - lamp. Beck Intensity and ground glass and wratten 45a filter. Condenser - Leitz 1.4 NA. Camera ext. 215 mm. Plate - Kodak Pan. Exp. 5.75m. Fine grain 1D11. Talen F.C. Griggs 29.9.48 op.lat. Top lens removed. OBJ. Watson Holes 12mm. 0.65 N.n. used 182 mm. thickcore Eyepiece x 14. Wellcome Collection. Source: Wellcome Collection.

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