Originally Posted by stronglight

There seem to always be beaucoup 118 mm Stronglight spindles on eBay, and usually selling for very little... [well, except when one needs one ]
Cyclart has a couple used ones for $35 + shipping (used!) but that's just TOTALLY NUTS!

HERE is the length needed for a 49D double chainring crankset. I don't know what this seller was imagining by mentioning the 49D "Track" application (that would be 113 mm) and it also looks like a standard 1970s spindle, too - not specifically 1960s.