Stamps of United States, additional ounce denom
1 to 6 of 6
postage
2015, Jun 1 Penguins issue unwmk
| - | additional ounce | multi | Emperor Penguin Aptenodytes forsteri, p. 12 | |||
| - | additional ounce | multi | Emperor Penguin Aptenodytes forsteri | — | — |
2017, Feb 18 p. 12
| - | additional ounce | multi | Uncle Sam's Hats |
2019, Jan 27 (no perf info)
| - | additional ounce | multi | Uncle Sam's Hat - "2019" Imprint |
2021, Jan 24
| - | additional ounce | multi | Brush Rabbit |
2023, Jan 5
| X | additional ounce | multi | School Bus |
1 to 6 of 6