Watch List notes:

Helbing, Otto, Nachf.. Münzen und Medaillen. Verkaufs-Katalog XXII. (München, no date [1935]). 32pp.; 837 lots. 26 x 20.5 cm; Fixed price list of early modern European coins; medals and other materials. On back part of poststamp and 1935 date clearly visible. Very Good, a little faded.

Duplicate from the Library of the American Numismatic Society.