These Bausch n Lomb frames were bnls version of the BCG Goggles when they were contracted by the U.S military to manufacture frames for soldiers. It only lasted for a brief period being replaced by the infamouse Halo frame but there very rare and hard to find. There are no flaws on the frame. Hinges and screws all tight and straight. Size 50[]19, 140mm temple length.  Frame measures 5" wide. Made in the USA.