Identify old road bicycle frame Does anybody have idea what is this bicycle frame? We are considering with a friend restoring it and would be grateful for any info, also is it worth it.

Frame is totally without any stickers or manufacturer marks, only spray on it. Only thing characteristic are stars visible on the two connections and under bottom and probably Campagnolo hooks.

https://imgur.com/a/nPj74
The star cutouts in the lugs and BB identify it as a Guerciotti. I couldn't find vintage Guerciotti star pictures on their site, but there are other photos easily available via a Google image search.