Post Office: Overprinted in Black 6z Gray black
- Country Poland
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Denomination
?6zFace value of a stamp, usually printed on the stamps.— Glossary
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Color
?Gray blackOriginal catalog color of the stamp.
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Print method
?PhotogravureMethod of process of imprinting designs on paper.
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Perforation
?ImperforateHoles punched between stamps to make separating easier.
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Watermark
?UnwatermarkedA pattern embedded in a paper during stamp producing process.
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Issue Date
?Date inscripted on a stamp or cancellation for used stamps not necessary correspond to real date of stamp issue.
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#
?Catalog number of stamp.
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Views of Warsaw, 1939 and 1945: Holy Cross Church
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Warsaw Castle, 1939 and 1945: Overprinted in Black
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Cathedral of St. John: Overprinted in Black
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City Hall: Overprinted in Black
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Army General Staff Headquarters: Overprinted in Black
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Holy Cross Church: Overprinted in Black
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