Licence: In copyright
Credit: [Postal cancellation stamp for Salus (UK) Ltd. (9 September 1992)]. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/b28515572_0001.jp2/full/800%2C/0/default.jpg)
Licence: In copyright
Credit: [Postal cancellation stamp for Salus (UK) Ltd. (9 September 1992)]. Source: Wellcome Collection.