Dabar rodoma: Travankoras - Oficialūs ženklai (1911 - 1947) - 8 ženklai.
1931
Shell - Overprinted "ON S S"
WM: Niekas Perforacija: 12
![[Shell - Overprinted "ON S S", tipas T]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/T-s.jpg)
![[Shell - Overprinted "ON S S", tipas U]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/U-s.jpg)
![[Shell - Overprinted "ON S S", tipas V]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/V-s.jpg)
![[Shell - Overprinted "ON S S", tipas W]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/W-s.jpg)
![[Shell - Overprinted "ON S S", tipas X]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/X-s.jpg)
![[Shell - Overprinted "ON S S", tipas Z]](https://www.stampworld.com/media/catalogue/Travancore/Official-stamps/Z-s.jpg)
| Nr. | Tipas | D | Spalva | Apibūdinimas |
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| 13 | T | 6Ca | rausvai ruda | - | 0,52 | 0,52 | - | USD |
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| 14 | U | 10Ca | karmino | - | 3,12 | 2,08 | - | USD |
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| 15 | V | ¾Ch | juoda | - | 0,52 | 0,52 | - | USD |
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| 16 | W | 1¼Ch | rusvai purpurinė | - | 0,78 | 0,52 | - | USD |
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| 17 | X | 4Ch | tamsiai žalia | - | 1,04 | 0,52 | - | USD |
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| 17a* | Y | 4Ch | tamsiai žalia | yr.1934 | - | 3,12 | 5,71 | - | USD |
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| 18 | Z | 7Ch | lilac red | - | 2,08 | 0,52 | - | USD |
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| 19 | AA | 14Ch | oranžinė | - | 3,12 | 1,04 | - | USD |
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| 13‑19 | Nustatyti (* Stamp not included in this set) | - | 11,18 | 5,72 | - | USD |
