I got a new toy in the mail!
It's an M6 periscope, used in American armored vehicles. For $30, I couldn't resist!
It is in mint condition and the optics are crystal clear. It is unmarked with the exception of the label for periscope adjustment knob settings and "M6 Periscope" plaque. With that being said, it's condition and lack of markings has me concerned that it could be post WWII...
Can anyone help me date this periscope? WWII or postwar?