Originally Posted by
juvela
(...) the thun chainset looks a bit low end to mount to a frame built with falck. (...)
Actually Legnano did just that in the late seventies. It's the reason I suspect the cranks may be original. Another oddity is that there are no eyelets on the dropouts, which is unusual for a lower-end model. Except with the aforementioned Legnano.
This is mine. Same Falck sticker, no eyelets. I'm pretty sure it originally came with Balilla brakes and Valentino derailers:
