This is a cool rangefinder with a fast 45mm lens made by Yashica.
This one has a few condition issues. The rangefinder patch is not visible, there seems to be something loose inside the rangefinder system and it is not functioning. There is also a small spot of fungus inside of the lens but it will not affect your image quality. I could not get a response out of the light meter.
Otherwise the camera looks good and works well. The shutter speeds are all accurate.