Swift & Son's new patent microscope.
Licence: Public Domain Mark
Credit: Swift & Son's new patent microscope. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/L0073721/full/800%2C/0/default.jpg)
Licence: Public Domain Mark
Credit: Swift & Son's new patent microscope. Wellcome Collection. Source: Wellcome Collection.