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:
80 years of the club of Levice philatelists 1925-2005

80 years of the club of Levice philatelists 1925-2005
Day of use: 18. 11. 2005
 
Post office: LEVICE 1
Colour: black

Angličtina / English

Use translation by Google Translate (no guarantee).

Commemorative postmark used in Levice on the occasion of the 80th anniversary of the Philatelic Club in Levice.


Text motifs: 80 ROKOV KLUBU LEVICKÝCH FILATELISTOV

Pictorial motifs: Levický hrad.

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