US Army Variable density glasses 1944
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Variable density glasses with its carrying case, two spare filters and instructions for use.
Manufactured by American Optical Company stock No.74-G-79-40, US 1944.
The variable density red lenses operate with the central knob, turning this knob counter-clockwise darkens the lenses, giving different degrees of density from clear to pink/red, and allows the wearer to track targets close to and across the face of the sun.
The glasses were also equipped with a red “fold-down” plastic visor used to reduce glare in strong sunlight.
This model of goggle was mainly intended for anti-aircraft gunners and bomber group.
