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Ozorków is a town northwest of Łódź.
In Ozorków, Generalgouvernement Warschau overprints (Michel 6-10 and 12-16) were additionally overprinted "Polska", "poczta", two bars and "Ozorków" (size: 17½ x 17½ mm). The overprints are generally blue, but are also known violet and red.

![]() Michel 6 |
![]() Michel 7 |
![]() Michel 8 |
![]() Michel 9 |
![]() Michel 10 |
![]() Michel 12 |
![]() Michel 13 |
![]() Michel 14 |
![]() Michel 15 |
![]() Michel 16 |

Examples of Ozorków cancellations