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:
300 years of nationalization of Hungarian post offices

300 years of nationalization of Hungarian post offices
Day of use: 01. 07. 2022
 
Post office: BRATISLAVA 49
Colour: black

Angličtina / English

Use translation by Google Translate (no guarantee).

Commemorative postmark used in Bratislava on the occasion of the 300th anniversary of the nationalization of Hungarian post offices.


Text motifs: 300 ROKOV / POŠTÁTNENIE UHORSKÝCH POŠTOVÝCH STANÍC / 1.VII. 1722

Pictorial motifs: Faksmile podpisu Carolus (Karol III. Habsburský).

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