I am re-running this post with the hopes someone from the Mendham, NJ area remembers my 1971 Brands Hatch Green LT-1 convertible delivered to Guther Motors. Gunther Motors burned down years ago and it is now a Toyota dealership. It has a white top and has been in the NJ/NY area for it's whole life. I have contacted the previous 2 owners but neither has any paperwork. Working through the NJ Division of Motor Vehicles has also been a dead end. Any lead would be appreciated!