sciencematerial: Made of polished glass with ground edges. Bi-concave lens: Used for reducing the size or spreading out light, with two inward curving symmetrical faces
tags:
from: https://vintageedgey.tumblr.com/post/47109940076
recommended: vintageedgey tumblr, girlslickingcum #haider80 girlslovecum haileeharrisx girlsontheirbacks