Vintage Rare Leica CM Point & Shoot Film Camera Summarit 40mm f/2.4 Prototype

First, im not an expert and there are no 35 film available around to do a full test however I found the appropriate battery and I wad able to test the buttons and the functions and everything seems alright for me for my limited knowledge point of view. Show signs of age and use especially on shutter. Also there are some dust points when I look from the viewer (seen on the last picture). I can hear the gear running when I close the back door. Feel free to ask for video or anything else if interested.