Front:
Desague de Gatún, Canal de Panamá
29
The Powerhouse and the Gatun Spillways, Panama Canal
17712
Back:
"CASA CENTRAL"
W. KARDONSKI
AVENIDA BOLIVAR 9126 COLON, REP. DE PANAMA
FOR MESSAGE ONLY
A "COLOURPICTURE" PUBLICATION, BOSTON 15, MASS., U.S.A.
WK
