Concept
Postmarks
Catalogue
- Books
Quellen und Badeorte in der Philatelie / von S. Gutmann.
Gutmann, S.Date: 1962- Books
Sanitary fairs : a philatelic and historical study of Civil War benevolences / by Alvin Robert Kantor and Marjorie Sered Kantor.
Kantor, Alvin Robert.Date: [1992], ©1992- Books
Disinfected mail : [historical review and tentative listing of cachets, handstamp markings, wax seals, wafer seals and manuscript certifications alphabetically arranged according to countries / In collaboration with C. Ravasini and others.
Meyer, K. F. (Karl Friedrich), 1884-1974.Date: 1962]