American Optical(AO) Winger Men's Sunglasses

American Optical(AO) Winger Men's Sunglasses
Black frame
Bottle green lens
Diamond hard, scratch protected lens
Full sun protection
Came with a local wallet.
100% UV protected colran lens
Heavy duty.
First designed for the U.S. Military officials.
"AO" sign etched on the left lens and nose pad.
Word 'american optical 20KGP' print on right wing.
On the other hand size details printed on the right wing.
AO interlocking at nose .
Mark under the bridge between lens.
AO hard coded on both wings near lens.