Most látható: Svájc - ILO (1923 - 1994) - 7 bélyegek.
![[Switzerland Postage Stamps of 1924-1928 Overprinted "S.d.N - Bureau - international - du Travail", típus C]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/C-s.jpg)
![[Switzerland Postage Stamps of 1924-1928 Overprinted "S.d.N - Bureau - international - du Travail", típus C1]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/C1-s.jpg)
![[Switzerland Postage Stamps of 1924-1928 Overprinted "S.d.N - Bureau - international - du Travail", típus C2]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/C2-s.jpg)
![[Switzerland Postage Stamps of 1924-1928 Overprinted "S.d.N - Bureau - international - du Travail", típus C3]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/C3-s.jpg)
![[Switzerland Postage Stamps of 1924-1928 Overprinted "S.d.N - Bureau - international - du Travail", típus C4]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/C4-s.jpg)
![[Switzerland Postage Stamps of 1924-1928 Overprinted "S.d.N - Bureau - international - du Travail", típus C5]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/C5-s.jpg)
![[Switzerland Postage Stamps of 1924-1928 Overprinted "S.d.N - Bureau - international - du Travail", típus C6]](https://www.stampworld.com/media/catalogue/Switzerland/ILO/C6-s.jpg)
| No. | Típus | D | Szín | Leírás |
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| 25 | C | 2½(C) | olajbarna | 309 | - | 0,52 | - | USD |
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| 26 | C1 | 3(C) | ibolyakék | (95.000) | 515 | - | 1,55 | - | USD |
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| 27 | C2 | 7½(C) | zöld | (600.000) | 309 | - | 0,52 | - | USD |
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| 28 | C3 | 10(C) | kékes zöld | 309 | - | 0,77 | - | USD |
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| 29 | C4 | 15(C) | barnáskármin | 309 | - | 1,55 | - | USD |
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| 30 | C5 | 5Fr | kék | 515 | - | 82,50 | - | USD |
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| 31 | C6 | 10Fr | szürkészöld | (8.000) | 515 | - | 128 | - | USD |
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| 25‑31 | 2 784 | - | 216 | - | USD |
