I recently bought a a frame from Italy that was represented to be a Cinelli. It has a repaint and new decals. It's extremely well made, lugged head tube and the rest fillet brazed. It has a internal chromed routing for the der cable, but know where on the lugs or bottom bracket does it have the Cinelli name. The tube set decal says is Genius - but it could any of the Nivacrome tub sets. In examining the frame it appears the bottom dropouts are stamped what appears to be t1112 does this number mean anything to you frame builders? The bottom bracket is also stamped 95072 and 55 which I think indicates it was made and is a 55cm frame made in 1995. I don't know if anything, but it is a 55x55 square frame. Any help would be appreciated.
A Cinelli frame of that vintage would most likely have the famous "spoiler" bottom bracket shell. Ceeway sells these shells so you might want to check out the photo to see if it matches your frame.