I've got a very early '60's PX10, in need of extensive restoration, that has Stronglight SC57 cranks on it. One of the green ones with orange-painted lugs, but the paint is really beat from exposure.

I got another pair of SC57 cranks (BSA-threaded) from a basket-case Italian bike that must have been taken apart not long after it was new. The rear "no Record" hubshell was bent, but the rest of the parts that were put in this huge box were in excellent shape, including a Brooks Pro, a Gran Sport mech with cable adjuster barrel, and a 2nd-gen Record front mech. Also it had Mafac brakes, but the frameset had been left to rust and I was never able to identify it before I gave it away to a guy who had it powder-coated blue. The cranks were mounted on a Magistroni bb.

I've also had a couple of 1st-year Record cranksets come my way, one in exchange for work and the other attached to a 1959 Paramount. I sometimes wonder what these things are worth.