Ditunjukkan sekarang: Czechoslovakia - Setem-setem bayaran pos-tertangguh (1920 - 1929) - 10 Setem-setem.
10. January WM: Tiada Perforasi: 14
![[Postage Stamp Overprinted in Blue, jenis I]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-due-stamps/I-s.jpg)
17. January WM: Tiada Perforasi: 14
![[Postage Stamps of 1920 Overprinted & Surcharged, jenis J]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-due-stamps/J-s.jpg)
![[Postage Stamps of 1920 Overprinted & Surcharged, jenis J1]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-due-stamps/J1-s.jpg)
![[Postage Stamps of 1920 Overprinted & Surcharged, jenis J3]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-due-stamps/J3-s.jpg)
No. | Jenis | D | Warna | Deskripsi |
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48 | J | 40/185(H) | oren | (7,25 mill) | 0.29 | - | 0.29 | - | USD |
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49 | J1 | 50/150(H) | merah tua | (3,93 mill) | 0.87 | - | 0.29 | - | USD |
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49A* | J2 | 50/150(H) | merah tua | Perf: 13¾ | (3,93 mill) | 34.66 | - | 4.62 | - | USD |
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50 | J3 | 60/185(H) | oren | (3,05 mill) | 0.87 | - | 0.29 | - | USD |
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48‑50 | Set (* Setem tidak termasuk di dalam set ini) | 2.03 | - | 0.87 | - | USD |
24. September WM: Tiada Perforasi: 14
![[Postage Stamps of 1970 Overprinted & Surcharged, jenis K]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-due-stamps/K-s.jpg)
![[Postage Stamps of 1970 Overprinted & Surcharged, jenis K1]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-due-stamps/K1-s.jpg)
![[Postage Stamps of 1970 Overprinted & Surcharged, jenis K2]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-due-stamps/K2-s.jpg)
26. September WM: Tiada Perforasi: Imperforated
![[No. 12 Surcharged, jenis L]](https://www.stampworld.com/media/catalogue/Czechoslovakia/Postage-due-stamps/L-s.jpg)