These glasses are probably WWI era or older. Very light due to thin arms, and smaller lenses. It’s hard to describe how they are constructed to move- it’s almost like there’s a slip joint that adjusts the lenses slightly when you pick them up. I know nothing about eyeglasses except what I research so I don’t know how to describe this. Measurements shown in photos. Wear to frames and lenses (arms also aren’t perfectly straight etc). See pics.
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