現在展示： 美國 - 欠資郵票 (1879 - 1978) - 7 郵票.
![[Numeral Stamps - Watermark 1, 類型 D11]](https://www.stampworld.com/media/catalogue/United-States/Postage-due-stamps/D11-s.jpg)
![[Numeral Stamps - Watermark 1, 類型 D12]](https://www.stampworld.com/media/catalogue/United-States/Postage-due-stamps/D12-s.jpg)
![[Numeral Stamps - Watermark 1, 類型 D13]](https://www.stampworld.com/media/catalogue/United-States/Postage-due-stamps/D13-s.jpg)
![[Numeral Stamps - Watermark 1, 類型 D14]](https://www.stampworld.com/media/catalogue/United-States/Postage-due-stamps/D14-s.jpg)
![[Numeral Stamps - Watermark 1, 類型 D15]](https://www.stampworld.com/media/catalogue/United-States/Postage-due-stamps/D15-s.jpg)
![[Numeral Stamps - Watermark 1, 類型 D16]](https://www.stampworld.com/media/catalogue/United-States/Postage-due-stamps/D16-s.jpg)
![[Numeral Stamps - Watermark 1, 類型 D17]](https://www.stampworld.com/media/catalogue/United-States/Postage-due-stamps/D17-s.jpg)
現在展示： 美國 - 欠資郵票 (1879 - 1978) - 7 郵票.
