Height x Width: 4 3/16 x 9 1/2 in. (10.6 x 24.1 cm)
Type:
Covers & Associated Letters
Place:
United States of America
Date:
1919
Description:
used
The official penalty cover was carried aboard the U.S.S. C-3 on the first official trip of submarine mail service from Atlantic to Pacific Ocean. It was postmarked Cristobal, Canal Zone, Atlantic - Pacific, May 7, 1919 and back(?) canceled Balboa Heights, Canal Zone / Received / May 7 1919 ... First Trip Submarine Mail Atlantic - Pacific.
[Research the C-3 and the circumstances surrounding the submarine mail service. What ever happened to the pictures that Virginia Spear spoke of in her Sept. 14 letter.]
Mr. Spear worked at the U. S. post office in Ancon, Panama, during and following the building of the Panama Canal.