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postage
1919, Aug 5 Poznan 1 issue ovpted on stamps of Germany (no perf info)
| - | 5pf | on 2pf (6) | ||||
| - | 5pf on 7 1/2pf | redorg | Germania, w. lozenges | |||
| X | 5pf | ultra | on 20pf-ultra (6) |
1919, Sep 15 Poznan 2 issue ovpted on stamp of Germany
| - | 5pf | on 2pf (6) |
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