When blue is blue

Scientific treatise and study on the composition of the paint on the Protectorate 5h blue linden leaf stamp. Study of the dependence of the amount of paint on the color shade of postage stamps.

03. 05. 2025
Complete description

Commemorative Postmark:
Inauguration of the postage stamp Historical Anniversaries: Lubovna castle

Inauguration of the postage stamp Historical Anniversaries: Lubovna castle
Day of use: 08. 11. 2012
 

Angličtina / English

Use translation by Google Translate (no guarantee).

Príležitostná poštová pečiatka používaná pri príležitosti slávnostnej inaugurácie poštovej známky Historické výročia: Ľubovniansky hrad v Starej Ľubovni.




Deň používania: 8. 11. 2012
Pošta: STARÁ LUBOVŇA
Farba: čierna
Autor: Mgr. art. Jozef Česla
Textový motív: INAUGURÁCIA POŠTOVEJ ZNÁMKY
Obrazový motív: Ľubovniansky hrad.


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