Advert For Chas. E. Braun & Co. Microscopes
Medium: Print on paper
The Egyptians used lenses to magnify small objects, but it was not until the 17th century that simple microscopes were used that could magnify an object 10 times. There were major developments in the design and production of microscopes in the 19th century and by the end of the period designs was more complex and magnification was much greater.