Very fine example of a extremely rare German military camera. Most German Military cameras have an "F" prefix and were made for the German Air Force or LUFTWAFFE. There bodies were stamped with "Luftwaffen Eigentum" on the back and lens. These are already rare, but the German Army or Deutch Army variation is much rarer. The serial number on this piece is F48136-6. Even though it has the distinctive "F" serial number, it does not have the Luftwaffen Eigentum stamp. It also has a chrome top and winder, duel viewfinders, and short winder with no arrow. There are other small difference as well from the standard Robot II and the Luftwaffen Eigentum version. I was unaware to this version of the camera until a kind hearted and very knowledgeable Ebayer (Thank you Gerald) pointed it out to me. I have several Robot Military cameras and had a Luftwaffen Eigentum lens on this one thinking it was where it belonged, turns out I got them mixed up at one point and the lens pictured is the proper lens. It is a Carl Zeiss Jenna Tessar 3 3/4cm f/3.5 lens. I believe these to be uncoated. Truly a rare find as are the other models I have also acquired. Keep an eye on my other listings for more pretty rare items. Thank you.