How much is a 1973 100 won coin worth in the US?

Answer 1

Please check your coin again and post a new, separate question. There can't be anything called a "100 France quarter":

(1) The US and Canada are the only two major countries that have coins commonly called quarters.

(2) In 1973 France used francs.

(3) France stopped issuing 100-franc coins in 1959, and only minted the denomination again in very small quantities in 1982

Answer 2

Germany used the mark, France used the franc, Switzerland still uses the franc. Double check what you have and post a new question.

Answer 3

Germany didn't use the franc.