Menampilkan: Travancore - Prangko resmi (1911 - 1947) - 9 prangko.
1920 -1922
Shell - Overprinted "ON S S"
WM: Tiada Perforasi: 12
![[Shell - Overprinted "ON S S", Tipe K]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/K-s.jpg)
![[Shell - Overprinted "ON S S", Tipe L]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/L-s.jpg)
![[Shell - Overprinted "ON S S", Tipe M]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/M-s.jpg)
![[Shell - Overprinted "ON S S", Tipe O]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/O-s.jpg)
![[Shell - Overprinted "ON S S", Tipe P]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/P-s.jpg)
![[Shell - Overprinted "ON S S", Tipe R]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/R-s.jpg)
![[Shell - Overprinted "ON S S", Tipe S]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/S-s.jpg)
| No. | Tipe | D | Warna | Deskripsi |
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| 8 | K | 5Ca | coklat lilac | - | 1,15 | 0,57 | - | USD |
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| 8a* | L | 5Ca | coklat kekuningan | - | 0,57 | 0,57 | - | USD |
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| 9 | M | 6Ca | coklat kemerahan | - | 0,57 | 0,57 | - | USD |
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| 9a* | N | 6Ca | coklat kemerahan | - | 16,09 | 2,30 | - | USD |
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| 10 | O | 10Ca | merah tua | - | 1,15 | 0,57 | - | USD |
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| 10a* | P | 10Ca | merah tua | wm.2 | - | 5,75 | 0,57 | - | USD |
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| 10b* | Q | 10Ca | merah tua | - | 109 | 28,74 | - | USD |
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| 11 | R | 7Ch | lilac red | - | 2,87 | 0,57 | - | USD |
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| 12 | S | 14Ch | oranye | - | 4,02 | 1,15 | - | USD |
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| 8‑12 | Set (* Stamp not included in this set) | - | 9,76 | 3,43 | - | USD |
