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

Stationery Envelope with Imprint:

Date of Issue: 11. 09. 2009
 

Angličtina / English

Use translation by Google Translate (no guarantee).

Celinová obálka Veľkomoravský šperk s prítlačou ÖVEBRIA 2009 Viedeň




Celinová obálka Veľkomoravský šperk s prítlačou
ÖVEBRIA 2009


Deň vydania: 11. 9. 2009
Nominálna hodnota: 0,40 €
Autor známky: Peter Augustovič
Autor prítlače: Adrian Ferda
Predajná cena: 0,40 € + 0,17 €




Zdroj: Slovenská pošta/POFIS


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