Stamps of United States, 1913 base year
1 to 9 of 9
postage
1913 Panama-Pacific issue wmk. single line USPS (9 stamps)
| X | 1c | grn | Balboa, p. 12 | |||
| X | 1c | grn | Balboa, p. 10 (1914) | |||
| X | 2c | car | Panama Canal, p. 12 | |||
| X | 2c | car | Panama Canal, p. 10 (1915) | |||
| X | 5c | bl | Golden Gate, p. 12 | |||
| X | 5c | bl | Golden Gate, p. 10 (1915) | |||
| X | 10c | orgyel | discovery of San Francisco Bay, p. 12 | |||
| - | 10c | org | discovery of San Francisco Bay, p. 12 | |||
| - | 10c | org | discovery of San Francisco Bay, p. 10 (1915) |
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