This is a medal issued in 1981 by the Czechoslovakian Anti-Facist Committee to all surviving ex-members of teh Communist resistance to the Nazis. It’s a state supported organisation but the medal should be considered an unofficial issue.
This Czech medal was created in 1946. The rear of the medal says “in remembrance of the 2nd national revolt”. This medal was issued to everyone who helped resist the German occupiers of Czechoslovakia.
This is one of the endless lineup of ex-Eastern Bloc medals that celebrate an anniversary of either the fall of the Fascists or the Liberation from aforementioned Fascists. In this case it is the 30th anniversary of, I presume, the liberation of Czechoslovakia.
I know nothing about this medal beyond its name. It came in a big box of junk from an auction. I don’t really care for Communist stuff, but who would buy this?
This medallion is a copy of the commemorative coin created for the 1939 World’s Fair in New York. The original medal was a table medal. This is a medallion with a loop to be attached to a ring or chain.