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:
50 years of Slovak Fencing Association

50 years of Slovak Fencing Association
Day of use: 25. 04. 2019
 
Post office: BRATISLAVA 1
Colour: black

Angličtina / English

Use translation by Google Translate (no guarantee).

Commemorative postmark used in Bratislava on the occasion of the 50th anniversary of the founding of the Slovak Fencing Association


Text motifs: SLOVENSKÝ ŠERMIARSKY ZVÄZ

Pictorial motifs: Logo Slovenského šermiarskeho zväzu.

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