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

Specialized articles

Beginning    <<   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   >>   End
25. 12. 2019

Haviva Reik - Israeli Slovakiana

Suprising Israeli Slovakiana - Chaviva Reik (1914 - 1944) - Zionist activist and member of the Amsterdam Airborne Group.

Ján Mička
14. 05. 2019

Peace Race

An introduction to a series of articles devoted to a detailed overview of postage stamps and other postal documents related to cycling Peace Race with an exhaustive description of philatelic peculiarities and attractions.

Vojtech Jankovič
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
Beginning    <<   1   2   3   4   5   6   7   8   9   10   11   12   13   14   15   >>   End

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