Originally Posted by
ericbaker
I'm not 100%, but I think the "AC" on the BB shell could mean that it uses "Accles and Pollack" tubing, a popular in that period and high end alternative to Reynolds, usually you seen the AC with a diamond around it though, so perhaps not... worth looking into.
thanks a million, but no diamond indeed. how about the G472 on the back, what does that say ?