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

Collectors' Bourses and Meetings:
Sundays meeting of collectors in Opava (Czech Republic)

Sundays meeting of collectors in Opava (Czech Republic)
Location: Horní náměstí 49 (4. p.), Opava (Česká republika)
Entry: Unspecified
Date: 29. 06. 2025

Angličtina / English

Use translation by Google Translate (no guarantee).

Invitation to the regular Sundays meeting of collectors in Opava (Czech Republic).


Čas konania: 9:00 - 11:00
(burza sa koná každú nedeľu)

Organizátor: KF 07-16 Opava



Mapa s vyznačeným miestom konania:



Zdroj:

© Časopis FILATELIE


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