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

New releases, inaugurations, the most beautiful stamps, competitions:
Taste Belgian chocolate. On postage stamps

Taste Belgian chocolate. On postage stamps
Author: Vojtech Jankovič
Source: www.hnonline.sk
Published: 07. 02. 2013 17:55

Angličtina / English

Use translation by Google Translate (no guarantee).

Informácia o vydaní hárčeka Belgickej pošty s tromi poštovými známkami venovanými tradičnej belgickej čokoláde.

Základné informácie:


Poštové známky Belgická čokoláda


Author: Vojtech Jankovič
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