I agree with T-Mar that this is a bike from the early 1970's. When the U.S. bike boom hit in 1971 -1972 everyone and his brother starting exporting bikes to America. St. Etienne was one of a large number of French brands exported here that lasted maybe 5 years maximum before they disappeared. Typical basic French stuff, and like said, the front hub wing nuts are a dead giveaway for its time. Intersting trying to get replacement parts for this bike now-frech threaded everything plus smaller than normal stem, bars, etc.