My Dad purchased this bike in 1978 and I rode this thing all over Austin for years. He recently gave it to me and I was wondering if anyone on here could give any insight. I saw some posts somewhere that talked about serial numbers in the 600’s, but the only numbers I can find on the frame is 105. Everything on the bike is original except for the chain, the tires and he painted it black(originally it was a burgundy). He took really good care of the bike; it was never left outside.