This is a twin-lens reflex camera released in 1955 by Yashima Optical Co., Ltd. (later Yashica). The taking lens is Yashikor 80mm f/3.5, and the viewing lens is Tri-Lausar 80mm f/3.5. The shutter is Copal, with B, 1-1/300 seconds and a built-in self-timer. It functions well. The body has scratches and dirt commensurate with its age. The leatherette has cracks, peeling, and repair marks in various places. There are touch-up marks where the black paint has peeled off. The accessory shoe is supposed to be fixed with three minus screws, but two of them are missing, so plus screws of the same size have been installed. The film advance mechanism is an automatic stop type, which detects the movement of the film backing paper, so it will not work unless a film or a spool wrapped with similar paper is inserted. The distance dial display plate is shifted about 0.5mm to the right, but it is within the depth of field range, so there is no particular problem. I'm not sure, as it's been decades, but I think it was originally like this. The viewfinder has clouding and dirt on the mirror, and it feels a little darker compared to when it was new. However, twin-lens reflex viewfinders are not originally very bright. Each lens has slight dirt and clouding, but it is good for its age and I think it will hardly affect the image quality. The shutter is working properly at all speeds. There are no problems with the self-timer or aperture operation. In my personal opinion, the camera is in good condition for a 70-year-old camera, and I think it can be used for actual photography.