Planned expiration of the validity of some postage stamps with symbolic value

Information about the planned termination of validity of some postage stamps with symbolic value due to the cancellation of the relevant tariff classes.

17. 02. 2025

Slovak, Czech and Czechoslovak stamp

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02. 02. 2019

Measurement of perforation of postage stamps

Reflection on the methods of measuring Slovak postage stamps perforation and the results that brought in a more accurate measurement by a professional sliding scale.

Rudolf Šulej
01. 07. 2018

Minerals on stamps (V.) - Tourmaline

The fifth part of the interesting overview of postage stamps devoted not only to minerals and mineralogy but also to other related areas (gemmology, crystallography, meteoritics) as well as personalities, museums with expositions of minerals, precious stones in crown jewels, etc.

Daniel Ozdín
18. 02. 2018

The right is left and left is right

Expert´s dispute on an unusual discovery of the Slovenský štát/1939 overprint on a genuine used cover + opinion of the expert on history and censorship

Bohumil Synek
20. 01. 2017

Finland - mixed frankings (Czech)

Article devoted to attractive frankings mixed of Russian ruble - kopek currency and the Finnish markka - penni currency.

Vladimír Kaisr
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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