Estados Unidos

Yvert 334. 1935. 7 ctvos negro. RAPID CITY a BERKELEY. En el frente marcas U.S. ARMY-NATIONAL GEOGRAPHIC SOCIETY / SECOND / STRATOSPHERE FLIGHT, en violeta y BALLOON BURST INFLATING / 3 AM JULY 12, 1935. MAGNIFICA.

Automatically generated translation

Yvert 334. 1935. 7 cents black. RAPID CITY to BERKELEY. On the front marks US ARMY-NATIONAL GEOGRAPHIC SOCIETY / SECOND / STRATOSPHERE FLIGHT, in purple, and BALLOON BURST INFLATING / 3 AM JULY 12, 1935. MAGNIFICENT.