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:
Opportunity for postage stamps artists and youth interested in postage stamps creation

Opportunity for postage stamps artists and youth interested in postage stamps creation
Author: Vojtech Jankovič
Source: www.telecom.gov.sk
Published: 03. 08. 2010 21:37

Angličtina / English

Use translation by Google Translate (no guarantee).

Informácia o šestnástom ročníku medzinárodnej súťaže návrhov na poštové známky, ktorú vyhlasuje Kórejská pošta (Korea Post).

Základné informácie:


Author: Vojtech Jankovič
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