Author: Vladimir Kachan

List of articles:

Unusual Moths (10.01.2017)

Thematically highly specialised article on moths which served as an inspiration for (bio)engineers in construction month-like airplanes and other transportation machines.

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Philatelic partners

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