“Zeppelin Mail of World War I”
During World War I the German Army and Navy operated some 130 airships either as bombers or for reconnaissance. Most of these airships used cachets or handstamps on mail from the crew (about 20 for each craft) indicating the mail was official and free. Mail with such cachets are uncommon and this exhibit showed examples from 12 airships together with some pictorial postcards of the airships. There were also three covers with cachets of the airship bases.