A nice example of this early optical trade sign featuring orange and blue lenses with a composite material frame and steel hanging bracket. CONDITION: The lenses remain in nice condition, but the blue lens shows a horizontal crack that goes all the way through. The frames around the lenses are made of a composite material. There is a crack both along the bottom-left of the blue lens and to the left-center of the orange lens. These cracks do go all the way through the frame, but are sturdy. The cast iron hanging bracket as well as the frames of the lenses show a nice crinkle pattern yellow paint job, as well as general paint loss and crazing throughout. A well-displaying example. Condition: (7.0). Dimensions: 31" x 16".