Stamps of Poland - Polish offices in Gdansk, 1200 ndenom
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postage
1925, Jan 5 ovpted on stamp of Poland unwmk p. 9-14.5
| - | 20g | bl | ovpt, arms of Poland |
1926 1926c issue ovpted on stamp of Poland (no wmk info) (no perf info)
| X | 20g | on 20g (5) |
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