This is a special variant of the famous microfilm Minox Spy Camera, with the original leather pouch and integrated light meter. This camera was used extensively by the CIA and KGB due to its convenient form factor and intuitive nature. This model is fully functional and can take shots, including the operation of the filters and shutter speeds as pictured. It uses microfilm which is just standard 35mm film that can be cut to size. The selenium cell, being chemical in nature has degraded in 70 years and needs a change or retrofit. An interesting take on the lens: " The Accuracy of the Minox lens: Photographing blueprints (scaled mechanical drawings) was so accurate, corner to corner that measurements were exactly to scale, so, when enlarged to the size of the original drawing, accurate measurements could be taken from it." Here you can watch a short and engaging documentary about this exact model: https://www.youtube.com/watch?v=_tt5i-uQX8E -The camera will be sent very well packaged and fully insured with priority 1 status, as I would want for myself Thank you and happy treasure hunting!