Originally Posted by repechage

Braze on front changer mount was done later than the build time, The white ebay bike was built too early for that (1977), even in prototype form, and if it was a prototype just for the sake of argument, then it would have been provided with the frame as the part was not availible otherwise if so, it would have been the 4 hole cage type, no? The three hole cage came in the 80's. That braze on, the chain-rest, and unique top tube cable guides, plus and admission that Simonetti repainted it, scream, modified and not original.

Mario's spade cutouts also evolved, but the American production frames all have the same basic shape, done by a SoCal engraving outfit, the graphic design came first, before the Los Angeles operation started. The lug cutouts either initiated the graphics or the graphics were the germination for the lug cutouts he is most known for.