News on the information philatelic portal www.postoveznamky.sk (1/2026)

Information about news on the philatelic portal www.postoveznamky.sk (1/2016).

03. 02. 2026
Complete description

Mystery of red spots clarified ...

Mystery of red spots clarified ...
Author: Ing. Miroslav Gerec
Source: www.postoveznamky.sk
Published: 18. 03. 2012 09:30

Krátky príspevok zameraný na vysvetlenie pôvodu farebných škvŕn na poštových známkach.




Author: Miroslav Gerec

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