S23520

Lake Constance Flight 1929 - Zeppelin ppc with decorative 50 Pfennig eagle single postage, cancelled with violet Zeppelin postmark (Type b) and red boardmark (last using on this flight) carried by airship on it' s Lake Constance flight dropped at Romanshorn (arrival postmark), very good quality, Sieger 50 B, Michel Zeppelin specialized catalogue 50 I e