Postage Due
![Poland 1919](/image/157550/base250X250/poland-1919-polska-postage-due-doplata-15-halerzy-overprinted-porto-no-gum.jpg)
Poland, without gum
1919. POLSKA. Postage due. DOPLATA. 15 halerzy overprinted Porto. No gum.
![Poland 1919](/image/157551/base250X250/poland-1919-polska-postage-due-doplata-25-halerzy-overprinted-porto-no-gum.jpg)
Poland, without gum
1919. POLSKA. Postage due. DOPLATA. 25 halerzy overprinted Porto. No gum.
![Poland 1919](/image/157552/base250X250/poland-1919-polska-postage-due-doplata-50-halerzy-overprinted-porto-no-gum.jpg)
Poland, without gum
1919. POLSKA. Postage due. DOPLATA. 50 halerzy overprinted Porto. No gum.
![Poland 1934](/image/157554/base250X250/poland-1934-polska-postage-due-doplata-10-gr-on-1-zl-horizontal-laid-paper.jpg)
Poland, Hinged
1934. POLSKA. Postage due. DOPLATA 10 gr on 1 zL horizontal laid paper. Hinged.
mICHEL PORTO 81V
![Poland 1934](/image/157555/base250X250/poland-1934-polska-postage-due-doplata-25-gr-on-1-zl-horizontal-laid-paper.jpg)
Poland, Cancelled
1934. POLSKA. Postage due. DOPLATA 25 GR on 1 zL horizontal laid paper.
MICHEL PORTO 83v
![Poland 1919](/image/157561/base250X250/poland-1919-polska-postage-due-doplata-10-halerzy-overprinted-porto-no-gum.jpg)
Poland, without gum
1919. POLSKA. Postage due. DOPLATA. 10 halerzy overprinted Porto. No gum.
![Poland 1919](/image/157549/base250X250/poland-1919-polska-postage-due-doplata-5-halerzy-overprinted-porto-no-gum.jpg)
Poland, without gum
1919. POLSKA. Postage due. DOPLATA. 5 halerzy overprinted Porto. No gum.
![Poland 1924-1926](/image/157482/base250X250/poland-1924-1926-polska-postage-due-doplata-2-zlote-in-never-hinged-4-block-on.jpg)
Poland, Michel Porto 77 I, Mint never hinged
1924-1926. POLSKA. Postage due. DOPLATA. 2 ZLOTE in never hinged 4-block on thin paper. Beautiful quality.
![Poland 1924-1926](/image/157483/base250X250/poland-1924-1926-polska-postage-due-doplata-5-zlotych-in-never-hinged-4-block-on.jpg)
Poland, Michel Porto 79 I, Mint never hinged
1924-1926. POLSKA. Postage due. DOPLATA. 5 ZLOTYCH in never hinged 4-block on thin paper. Beautiful quality.
![Poland 1938](/image/157494/base250X250/poland-1938-polska-postage-due-doplata-1-zl-in-never-hinged-4-block.jpg)
Poland, Michel Porto 99, Mint never hinged
1938. POLSKA. Postage due. DOPLATA.1 Zl in never hinged 4-block.
![Poland 1938](/image/157495/base250X250/poland-1938-polska-postage-due-doplata-5-gr-never-hinged-pair.jpg)
Poland, Michel Porto 92, Mint never hinged
1938. POLSKA. Postage due. DOPLATA. 5 GR. never hinged pair.
![Poland 1938](/image/157496/base250X250/poland-1938-polska-postage-due-doplata-10-gr-never-hinged-pair.jpg)
Poland, Michel Porto 93, Mint never hinged
1938. POLSKA. Postage due. DOPLATA. 10 GR. never hinged pair.
![Poland 1938](/image/157497/base250X250/poland-1938-polska-postage-due-doplata-15-gr-never-hinged-pair-print-number-68.jpg)
Poland, Michel Porto 93, Mint never hinged
1938. POLSKA. Postage due. DOPLATA. 15 GR. never hinged pair. Print number 68 in margin.
![Poland 1938](/image/157498/base250X250/poland-1938-polska-postage-due-doplata-20-gr-never-hinged-pair.jpg)
Poland, Michel Porto 95, Mint never hinged
1938. POLSKA. Postage due. DOPLATA. 20 GR. never hinged pair.
![Poland 1938](/image/157499/base250X250/poland-1938-polska-postage-due-doplata-25-gr-never-hinged.jpg)
Poland, Michel Porto 96, Mint never hinged
1938. POLSKA. Postage due. DOPLATA. 25 GR. never hinged.
![Poland 1938](/image/157500/base250X250/poland-1938-polska-postage-due-doplata-50-gr-never-hinged-pair.jpg)
Poland, Michel Porto 98, Mint never hinged
1938. POLSKA. Postage due. DOPLATA. 50 GR. never hinged pair.
![Poland 1919](/image/148876/base250X250/poland-1919-polska-postage-due-poczta-polska-on-15-heller-hinged.jpg)
Poland, Michel Porto 3, Hinged
1919. POLSKA. Postage due. POCZTA POLSKA on 15 HELLER. Hinged.
![Poland 1919](/image/148877/base250X250/poland-1919-polska-postage-due-poczta-polska-on-5-heller-pair.jpg)
Poland, Michel Porto 1, Cancelled
1919. POLSKA. Postage due. POCZTA POLSKA on 5 HELLER. Pair.
![Poland 1924](/image/141876/base250X250/poland-1924-polska-postage-due-doplata-1-000-000-mk-never-hinged.jpg)
Poland, Michel porto 62, Mint never hinged
1924. POLSKA. Postage due. DOPLATA 1 000 000 MK never hinged.
![Poland 1924](/image/141877/base250X250/poland-1924-polska-postage-due-doplata-2-000-000-mk-never-hinged.jpg)
Poland, Michel porto 63, Mint never hinged
1924. POLSKA. Postage due. DOPLATA 2 000 000 MK never hinged.
![Poland 1924](/image/141878/base250X250/poland-1924-polska-postage-due-doplata-3-000-000-mk-never-hinged.jpg)
Poland, Michel porto 64, Mint never hinged
1924. POLSKA. Postage due. DOPLATA 3 000 000 MK never hinged.