Stamps, issuer=China-issue=1931b-4c-grn on-desc-id
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China
postage1937 ovpted unwmk (no perf info)
| X | 1c on 4c | grn | Sun Yatsen |
Inner Mongolia
1941, Jul 1 1941a issue ovpted on stamp of China
| - | 4c | grn | ovpt, Sun Yatsen | — | — |
Japanese occupation of North China
1942 1942a issue ovpted on stamp of China
| - | 2c on 4c | grn | Sun Yatsen | — | — |
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