This item is quite old. I did an image search and it closely resembles the Nikonos I. I lack the knowledge to definitively say it's the same product. I haven't tested its functionality. I don't know how to use it. It's being sold as junk. I hope it can be used for collection, maintenance, repair, or parts. I wiped off the visible dirt. I'm not a professional, so please forgive any oversights or remaining dirt. Everything in the photos is included. Please assess the condition based on the photos. One of the strap attachment points is broken off. Please consider this item if you understand that it is a used product. We do not accept cancellations or returns after purchase.