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:
44th Rallye Tatry - Slovak Championship

44th Rallye Tatry - Slovak Championship
Day of use: 26. 05. 2017
 
Post office: POPRAD 1
Colour: black

Angličtina / English

Use translation by Google Translate (no guarantee).

Commemorative postmark used in Poprad on the ocasion of the 44th Rallye Tatry as Slovak Championship


Text motifs: 44. ROČNÍK / MAJSTROVSTVÁ / SLOVENSKA / 44th Rallye Tatry (logotyp)

Pictorial motifs: Logo 44. ročníka RALLYE TATRY

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