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:
25th anniversary of the Slovak Olympic Committee

25th anniversary of the Slovak Olympic Committee
Day of use: 22. 09. 2018
 
Post office: BRATISLAVA 1
Colour: blue

Angličtina / English

Use translation by Google Translate (no guarantee).

Commemorative postmark used in Bratislava on the occasion of the 25th anniversary of the Slovak Olympic Committee


Text motifs: 25. VÝROČIE SLOVENSKÉHO OLYMPIJSKÉHO VÝBORU / SLOVENSKÝ OLYMPIJSKÝ VÝBOR / SLOVAK OLYMPIC COMMITTEE / 1993 / 25 / 2018

Pictorial motifs: Číslovka 25 a vavrínová vetvička.

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