i got this.. i know nothing...

cheers

Stronglight Model 93 crank, French Made 60s through early 80s. Might have French pedal threads

Are they track cranks??

I don't think so, they made two different versions with the crank arm platform to hold the sprocket on both sides for a "regular" road bike and a single sided one for commuter bikes

our joke at the shop has always been:

"Stronglight...neither strong nor light"

lol.. thanks for the info.. i only have 1 side, so i was gonna chuck it...
cheers