Stamps of China - Inner Mongolia, 17c denom
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postage
1941 1941f martyrs secret wmk issue unwmk (no perf info)
| - | 17c | — | — |
1941, Jul 1 1941g issue ovpted on stamp of China - martyrs (1932) Hong Kong print
| - | 17c | brnol | ovpt, Sung Chiaojen | — | — |
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