Stamps, 1891 base year
501 to 511 of 511
Switzerland
postage1891 1891 issue wmk. cross in oval p. 11.5x11
| X | 50 | grn | Helvetia (1899) | |||
| X | 1fr | cl | Helvetia | |||
| X | 1fr | car | Helvetia (1902) | — | — | |
| X | 3fr | yelbrn | Helvetia | — | — |
Tonga
1891, Nov 10 ovpted (no wmk info) (no perf info)
| - | 4p on 1p | carrose | George Tupou I | |||
| - | 8p on 2p | vio | George Tupou I |
1891, Nov 23 ovpted
| - | 1p | carrose | ovpt, George Tupou I | |||
| - | 2p | vio | ovpt, George Tupou I |
Uruguay
1891, Aug 19 ovpted unwmk
| X | 5c | vio | ovpt, numeral |
official
1891, Sep 7
| - | 5c | vio |
Zululand
postage1891, Jun 27 ovpted on stamp of Natal (no wmk info)
| X | 1p | lil | on type=revenue-lil (0) | 1.00–10. | 1.00–10. |
501 to 511 of 511