Menampilkan: Travancore - Prangko resmi (1911 - 1947) - 8 prangko.
1931
Shell - Overprinted "ON S S"
WM: Tiada Perforasi: 12
![[Shell - Overprinted "ON S S", Tipe T]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/T-s.jpg)
![[Shell - Overprinted "ON S S", Tipe U]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/U-s.jpg)
![[Shell - Overprinted "ON S S", Tipe V]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/V-s.jpg)
![[Shell - Overprinted "ON S S", Tipe W]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/W-s.jpg)
![[Shell - Overprinted "ON S S", Tipe X]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/X-s.jpg)
![[Shell - Overprinted "ON S S", Tipe Z]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/Z-s.jpg)
| No. | Tipe | D | Warna | Deskripsi |
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| 13 | T | 6Ca | coklat kemerahan | - | 0,59 | 0,59 | - | USD |
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| 14 | U | 10Ca | merah tua | - | 3,52 | 2,35 | - | USD |
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| 15 | V | ¾Ch | hitam | - | 0,59 | 0,59 | - | USD |
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| 16 | W | 1¼Ch | ungu kecoklatan | - | 0,88 | 0,59 | - | USD |
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| 17 | X | 4Ch | hijau tua | - | 1,17 | 0,59 | - | USD |
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| 17a* | Y | 4Ch | hijau tua | yr.1934 | - | 3,52 | 6,46 | - | USD |
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| 18 | Z | 7Ch | lilac red | - | 2,35 | 0,59 | - | USD |
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| 19 | AA | 14Ch | oranye | - | 3,52 | 1,17 | - | USD |
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| 13‑19 | Set (* Stamp not included in this set) | - | 12,62 | 6,47 | - | USD |
