OK, now I feel more confident, about NOT tracking down a Simplex FD, unless I can find one that's all metal, like auchencrow posted. FYI, the Prestige RD I have came on a '74 Atala Giro d'Italia, along with a Shimano FE on the front. I don't recall ever seeing an FE before, but it looks pretty decent. But it is fairly heavy, so I'd have no qualms about throwing a 105 on in it's place. It would be lighter, probably work better, and look better, I think. But I'd have to track down a 105 FD, with that yellow script, since they didn't do red, to match the Simplex in the rear.