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

New releases, inaugurations, the most beautiful stamps, competitions:
We evaluated the competition for the most beautiful Christmas painting

We evaluated the competition for the most beautiful Christmas painting
Author: Vojtech Jankovič
Source: www.pofis.sk
Published: 27. 02. 2013 18:11

Angličtina / English

Use translation by Google Translate (no guarantee).

Infomácia o vyhodnotení súťaže krieseb detí o najkrajšiu detskú vianočnú kresbu, ktorú vyhlásila na konci roka 2012 vrámci Vianočnej pošty Slovenská pošta, a.s.

Základné informácie:


Author: Vojtech Jankovič

Philatelic partners

POFIS - Postal philatelic service
EXPONET - Virtual international philatelic exhibition
Slovak Society of Olympic and Sports Collectors
Filaso.cz ...or philatelists for themselves
OLYMPSPORT - Czech Association for Olympic and Sport Philately
ZSF - Union of Slovak Philatelists