Exponet Code 0084:
MILITARY AIRFORCE - CZECHOSLOVAK MILITARY AIRFORCE TROOPS AND THEIR SETTLING IN THE PERIOD OF 1914-1920
http://www.japhila.cz/hof/0084/index0084a.htm
Class for Postal History
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Exponet Code 0700:
AZERBAIJAN 1919-1923
http://www.japhila.cz/hof/0700/index0700a.htm
Class for Traditional Philately
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Links:
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