rawpixel
Elements
Designs
Design topics
Element topics
Boards
Curated
Popular
New
Photos
Illustrations
PNG Elements
Hide
Looking Glass
https://www.rawpixel.com/image/9079424/looking-glass
Free Image from public domain license
Optics: a variety of microscopes and specimens. Engraving, c.1770.
https://www.rawpixel.com/image/13992679/optics-variety-microscopes-and-specimens-engraving-c1770
Free Image from public domain license