I have just acquired this vintage Schwinn Straight bar. The serial number suggest that it is a 1950 model after going to a web site for info. I'm not to sure about that ? The bike still has the original paint (gold or copper) and what seems to be the original chainguard. However, the chain guard has blue paint on it with the script reading.."De Luxe". I know that the seat and handlebar are add ons. There seems to some other missing parts on this bike ? Any guess as to which model this really is ? The person who has given it to me said that it was given to them by a lady who got it when she was little. That lady is in her mid to late 70's now. Any ideas ?