Zobrazujú sa: Prieplavová zóna - Doplatné známky (1920 - 1929) - 6 známky.
1924 -1925
US Postage Due Stamps Overprinted
1. júl WM: nikto Perforácia: 11
![[US Postage Due Stamps Overprinted, typ D]](https://www.stampworld.com/media/catalogue/Canal-Zone/Postage-due-stamps/D-s.jpg)
![[US Postage Due Stamps Overprinted, typ D3]](https://www.stampworld.com/media/catalogue/Canal-Zone/Postage-due-stamps/D3-s.jpg)
| Číslo | Typ | D | Farba | Popis |
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| 11 | D | 1C | karmínovo červená | "A" with flat top | - | 93,78 | 29,31 | - | USD |
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| 11A* | D1 | 1C | karmínovo červená | - | 9,38 | 2,93 | - | USD |
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| 12 | D2 | 2C | hnedo karmínová | "A" with flat top | - | 58,62 | 9,38 | - | USD |
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| 12A* | D3 | 2C | hnedo karmínová | - | 14,07 | 4,69 | - | USD |
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| 13 | D4 | 10C | hnedo karmínová | "A" with flat top | - | 234 | 58,62 | - | USD |
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| 13A* | D5 | 10C | hnedo karmínová | - | 175 | 17,58 | - | USD |
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| 11‑13 | sada (* Stamp not included in this set) | - | 386 | 97,31 | - | USD |
