Inverted wmk (error) 100 korun
Details
Obverse: Czech text; wheat, gear, linden leaves and olive branch; factory with smokestacks; atomic symbol; allegorical male factory worker (Industry) with gear and allegorical female farmer (Agriculture) holding a sheaf of wheat
Reverse: Hradčany (Castle District) and Charles Bridge across Vltava River in Prague; coat of arms of socialist Czechoslovakia (Soviet star above rampant double-tailed lion with Soviet Slovak shield)