Patent of Richard Stringer : essence of myrrh for the teeth and gums.
- Stringer, Richard.
- Date:
- 1857
Licence: Public Domain Mark
Credit: Patent of Richard Stringer : essence of myrrh for the teeth and gums. Source: Wellcome Collection.
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Licence: Public Domain Mark
Credit: Patent of Richard Stringer : essence of myrrh for the teeth and gums. Source: Wellcome Collection.