Stamps of China - Japanese occupation of North China, 1/2c denom
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postage
1942 1942a issue ovpted on stamp of China - martyrs (1932) unwmk (no perf info)
| - | 1/2c on 1c | org | Chen Ying-shih | — | — |
1942 1942e issue ovpted on stamp of China - martyrs (1932) wmk. yu p. 14
| X | 1/2c on 1c | org | Chen Ying-shih | — | — |
1942 1942f issue ovpted on stamp of China - martyrs (1932) Hong Kong print unwmk (no perf info)
| - | 1/2c on 1c | org | Chen Ying-shih | — | — |
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