I believe they are either japanese or retro japanese (possibly even old japanese pre-1900) where glasses are round and the frame itself has like jagged bits, sorry I can't be more descriptive, english isn't really my first language and I can't show a drawing to make the "jagged" bits part easier to understand
by Kevin_Eats_Sushi
1 comment
This type? https://a2.cdn.japantravel.com/photo/32445-160370/738×491.8798828125!/fukui-glasses-museum-in-sabae-160370.jpg
It’s just frameless vintage glasses, there isn’t a real name