Originally Posted by T-Mar

Very nice! If that Simplex Juy 61 rear derailleur is OEM it should be 1961, possibly 1962, as it was reportedly manufactured only for 1961. The LJ23 aluminum bodied front derailleur was 1958-1962, so that fits too. However, the Mafac Top-63 brakes came out in 1963, so the question becomes, which are original?