Specification of William Robert Barker : medicinal discs.
- Barker, W. R. (William Robert)
- Date:
- 1875
Licence: Public Domain Mark
Credit: Specification of William Robert Barker : medicinal discs. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/L0050394/full/800%2C/0/default.jpg)
Licence: Public Domain Mark
Credit: Specification of William Robert Barker : medicinal discs. Source: Wellcome Collection.