Portable simple microscope designed and patented by George Lindsay in 1743. The components pack into a small box and are of very neat craftmanship.

Licence: Attribution 4.0 International (CC BY 4.0)

Credit: Portable simple microscope designed and patented by George Lindsay in 1743. The components pack into a small box and are of very neat craftmanship. Wellcome Collection. Source: Wellcome Collection.