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:
Czechoslovak Provisional Government in Skalica 6. 11. 1918

Day of use: 25. 10. 2018

Post office: SKALICA 1

Colour: black

Use translation by Google Translate (no guarantee).

Commemorative postmark used in Bratislava on the occasion of the 100th anniversary of the Czechoslovak Provisional Government in Skalica 6. 11. 1918

Text motifs: DOČASNÁ VLÁDA V SKALICI 6. 11. 1918

Pictorial motifs: Legionársky odznak nosený československými vojakmi na čapiciach v rokoch 1918-19 zobrazujúci znaky Čiech, Moravy, Sliezska a Slovenska.

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