Originally Posted by
Bezalel
Could be that the builder use a pre-manufactured fork. When did those become commonly availible? (Although Campy dropouts on a pre-manufactured fork is somewhat interesting.)
At this point we'd probably learn the most by knowing the width and threading of the BB. And it there is any fancy lugwork there.
During the period this was probably built, most builders built their own forks. But even if it was bought fork, the builder would have matched it to the frame at least to the point of having fender eyes or not.
The rear dropout may possibly say "Huret" It definitely isn't Campy or Shimano, but the stop seems to match what Campy used. As for dating it by the dropouts, that won't work because Campy used the same dropout on forks for many decades, and the rear isn't useful until it's identified for sure.
Knowing the BB thread would be a big help, since this seems to be of an era where Italian, French and British (and the rest of the works) all had different BB threads. It seems to predate the ISO standardization to the British thread, so that might at least pin down the country of origin somewhat.