Universal sidepulls and what looks like Tipo hubs based on the ends of the QR. But that is definitely not a sure thing. Looks like a GS derailleur to me, as indicated previously. It looks similar to a Gran Sport model I see in a late 70s catalog which features a Falk frame (not familiar with that) Details of the frame are virtually identical...no chrome save fork crown and possibly rear drop clamping faces, no sign of Columbus decal. The gruppo details do not match what I see in the catalog, but again that does not mean a lot. It would probably be considered lower end, but I bet it is a nice riding bike.