现在展示: 捷克斯洛伐克 - 欠资邮票 (1919 - 1971) - 10 邮票.
10. 一月 窗口管理器: 空缺 筛孔: 14
![[Postage Stamp Overprinted in Blue, 类型 I]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-due-stamps/I-s.jpg)
17. 一月 窗口管理器: 空缺 筛孔: 14
![[Postage Stamps of 1920 Overprinted & Surcharged, 类型 J]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-due-stamps/J-s.jpg)
![[Postage Stamps of 1920 Overprinted & Surcharged, 类型 J1]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-due-stamps/J1-s.jpg)
![[Postage Stamps of 1920 Overprinted & Surcharged, 类型 J3]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-due-stamps/J3-s.jpg)
24. 九月 窗口管理器: 空缺 筛孔: 14
![[Postage Stamps of 1970 Overprinted & Surcharged, 类型 K]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-due-stamps/K-s.jpg)
![[Postage Stamps of 1970 Overprinted & Surcharged, 类型 K1]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-due-stamps/K1-s.jpg)
![[Postage Stamps of 1970 Overprinted & Surcharged, 类型 K2]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-due-stamps/K2-s.jpg)
26. 九月 窗口管理器: 空缺 筛孔: Imperforated
![[No. 12 Surcharged, 类型 L]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-due-stamps/L-s.jpg)
现在展示: 捷克斯洛伐克 - 欠资邮票 (1919 - 1971) - 10 邮票.
10. 一月 窗口管理器: 空缺 筛孔: 14
17. 一月 窗口管理器: 空缺 筛孔: 14
24. 九月 窗口管理器: 空缺 筛孔: 14
26. 九月 窗口管理器: 空缺 筛孔: Imperforated
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