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:
Society of Saint Gabriel - Stamp Exhibition RELIGFILA

Society of Saint Gabriel - Stamp Exhibition RELIGFILA
Day of use: 27. 04. 2017
 
Post office: POPRAD 8
Colour: black

Angličtina / English

Use translation by Google Translate (no guarantee).

Occasional postmark used in Poprad on the occasion of the opening of the Promotional Stamp Exhibition RELIGFILA.


Text motifs: SPOLOČENSTVO SV. GABRIELA / RELIGFILA

Pictorial motifs: Kostol sv. Cyrila a Metoda (Poprad – Sídlisko Juh).

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