Hi Bill, I believe thats a TR3 because of the square fined barrels.

The TD1C which my dad had the following items on
metal profile forks, farhon drum front brake, TD1c rear brake, TD1c engine, the distinctive tank following the lines of the original 1c tank but with a different bottom designed to fit the twin top tube frame. Also it had a box under the tank with twin fuel taps.

When he sold the bike it had a black frame, white tank and seat (red stripe) and the fairing was a TD2 in yellow with a red stripe. The swinging arm was also chromed.