Watch List notes:

Helbing, Otto, Nachf.. Verkaufs-Katalog XX. (München, no date). 32pp; 1112 lots. 26 x 20.5 cm; Fixed price list of 118 Roman coins; 19 Byzantine and early medieval and late Roman coins; Medieval and modern coins; medals. Fine condition, once lightly folded to fit into an overcoat pocket.

Duplicate from the Library of the American Numismatic Society.