Puch was owned, manufactured and distributed by Austro Daimler. Puch was the entry level line (from a marketing perspective) for AD. The Cavalier was the alloy rimmed version of the Cavette and it spec'd the alloy Suntour derailleurs rather than the steel version which the Cavette used. The frame was hi-ten steel. I think the era would have been the early 1980's and the bike probably sold a little over $225 when new. Like most European entry level bikes, the Cavallier rode fairly well, but fabrication quality was not as nice as the entry level Japanese bikes like Miyata, Fuji, Panasonic, etc.