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

Philatelic Exhibitions:
Opening of the 1st Slovakia-Czech philatelic exhibition NITRAFILA 2013

Opening of the 1st Slovakia-Czech philatelic exhibition NITRAFILA 2013
Location: Divadlo Andreja Bagara, Nitra
Entry: Unspecified
Date: 03. 07. 2013

Angličtina / English

Use translation by Google Translate (no guarantee).

Slávnostné otvorenie 1. slovensko-českej filatelistickej výstavy NITRAFILA 2011 v Nitre.


Slávnostné otvorenie 1. slove/strong>nsko-českej filatelistickej výstavy NITRAFILA 2011, ktoré sa uskutoční v stredu 3. júla 2013 od 16:00 v priestoroch Divadla Andreja Bagara v Nitre za účasti zástupcov organizátorov, pozvaných hostí a novinárov.


Otvorenie 1. slovensko-českej filatelistickej výstavy NITRAFILA 2013

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