Perihel ultraviolet, infrared : brings health & the sun to your home / Perihel Limited.
- Perihel Limited.
- Date:
- 1955
Licence: In copyright
Credit: Perihel ultraviolet, infrared : brings health & the sun to your home / Perihel Limited. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/b17951197_0005.jp2/full/800%2C/0/default.jpg)