Originally Posted by loc n load

Here are two pair of my shooting glasses that I have owned and worn on the range for 40 plus years. These are the “ambermatic”
lens that will turn to a dark bronze in direct sunlight.
The pair with the wrap around shafts are dedicated shooting glasses and sit higher up on your face to clear rifle or shotgun stocks.
As you can see one has the brand etching on the lens and one does not.
I would say your glasses are certainly in the same age range as mine, plus or minus.
The “bullseye” attachment that went over the lens was a popular shooting aid for those of us in bullseye competition. That mount could have been used for a “blackout” lens or an aperture attachment. I have seen rifle & pistol shooters use them along with an eye patch over the non shooting eye and side screens over the shafts to block out peripheral distractions.
I am also a pilot and have a couple pair of the dark green lens glasses that I bought in the late 60’s.