[Hoping some of the finest minds, like Bulgie can help.]

I keep finding Colnagos with fork problems. One (1978) has the proper matching fork, both number stamped but the fork (stack) is too cut down to thread a campy headset. My Colnago Tandem came with a Benotto fork. Sigh.


Recently I found a "Playing Cards" 1970 Colnago frame for cheap. It came with a De Rosa fork (?!?). The resale of the fork will pay for the restoration. And parts!!


After searching for a proper fork with the two holes on the sides of the crown, I found this rusty fork. The condition didn't scare me because I wasn't planning on chroming the crown anyway.

Then I noticed something peculiar. The threads had been ground off.

Let me repeat….

THE THREADS HAD BEEN GROUND OFF!!!





Eeek


I have been racking my small brain to find a solution. Only thing I've come up with, and this is a long shot. Could I have it lathed with French threads? French forks must be smaller due to their quill stems being smaller. Then I only need to find a French threaded campy top nut.

Would that work or any other ideas?