Hello, I am new to this site and have a question about a 1940's Claud Butler Frame set. It is a Luggless 22" frame, with Continental Dropouts. It has original Finish with Creamy yellow paintwork, red wrapping where the transfers are. Frame No. is 171470. I was told it may be the MASS START model. It is exceptionally light, & is defiantly not your normal 531 lightweight (frame 4.1 pounds, fork 1.7 pounds). See pictures on Ebay item number 2212225234. I would really appreciate it if some one can provide me with specifics on this bike.
rgds,
Ralph