This unusual subminiature camera is shaped like a fat pen, and even has a pocket clip on the side.  Its leather case looks like a eyeglasses case, so the "pen" could be disguised even more. There is a small crack at the top that can be seen in the picture and I have no idea if the piece works

Secam of France marketed a number of Stylophot cameras in the 1950s, and this is a variant that was marketed only in the United States in 1955.   It is not marked "Stylophot," but it is identical to the Secam Stylophot Color camera except for the "Private Eye" name on the front.

Those familiar with the pull/push slide action film advance of Minox subminiature cameras may enjoy the pull/push film advance action using the silver film advance plate at the top of the camera.  There is a small split in the plastic camera body near this film advance plate.