Stamps of United States - Canal Zone, 90 ndenom
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postage
1924, Jul 1 1924 issue ovpted on stamp of United States flat plate print unwmk p. 11
| - | 1 1/2c | yelbrn | ovpt, Warren G. Harding |
1939 1939 issue ovpted on stamp of United States p. 11x10.5
| X | 1 1/2c | brn | ovpt, Martha Washington | — | — |
1946 1946 issue (no wmk info) (no perf info)
| X | 1 1/2c | Magoon | .20 |
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