Stamps, Isker River design
1 to 3 of 3
Bulgaria
postage1911, Feb 14 1911 issue unwmk p. 12
| X | 15s | bisbrn | Isker River |
1913, Aug 6 victory 1913 issue ovpted
| X | 15s | bisbrn | ovpt, Isker River |
Thrace
1913 1913d issue ovpted on stamp of Bulgaria
| - | 5pi on 15s | bisbrn | Isker River | — | — |
1 to 3 of 3