Metal Profile is a UK company that made various forks in at least the 60s, 70s. I think someone has a brochure on the internet. Their most famous forks may be the ones they made for early Rickman street bikes. These Rickman forks are 41.2 mm and are really good forks, fitted for a single Lockheed caliper. If you have a pair of these forks and decide not to use them I would be interested in buying/trading for them since I am trying to build a Rickman Triumph and am missing the forks. If you decide to use them and need help let me know what I can do.