Karrer, Robert
U.S. Navy slogan cancels in the Canal Zone and Panama area 1908-1941 - Canal Zone Study Group 1990
United States. Navy. | United States | Canal Zone | Panama (1878-) | Postal Markings | Slogan | Postal Markings -- Naval | 1908-1941 | 20th Century | Military Mail | Maritime Mail | Post Cards | Covers -- Naval | Postal History
U.S. Navy slogan cancels in the Canal Zone and Panama area 1908-1941 - Canal Zone Study Group 1990
United States. Navy. | United States | Canal Zone | Panama (1878-) | Postal Markings | Slogan | Postal Markings -- Naval | 1908-1941 | 20th Century | Military Mail | Maritime Mail | Post Cards | Covers -- Naval | Postal History