T.O.P models gold aluminium camber link (I think)
I'm not sure what model this fits, but TOP used to make option parts for Kyosho/Schumacher models in the 80/90's. I have put this up against a Schumacher Bosscat and Procat and the mount holes line up, so it could be for those.
The central mount holes are 20mm for hole centre to centre.
Condition : New, but slightly scruffy packaging.