OPS .65, .67, .80 Rossi .65 intake housing with OPS disc and pin. Some like the Rossi style of carb retention, the disc in this unit and the pin are both OPS. The disc is marked and OPS uses a copper/brass pin while Rossi uses a steel pin. (I will offer that style soon) Check the pictures for condition, hardly run if at all, clearing some old parts. 

 Please see the pictures, Check out my other stuff !