Vintage Pentax 2X-50 buying Camera

buying Vintage Pentax Camera. I purchased this Camera from a Camera Store in Mesa, AZ. As far as I know it still works, however, I will not guarantee this. No returns on camera. It is 2X-50 35 MM. The camera has a shoulder strap and the case that comes with it does also. They are in perfect condition. There is a filter on the camera, what type I do not know. SLR Camera.