Clocks: sundials and other helio-observational equipment. Engraving by T. Jefferys.
- Reference:
- 45217i
Licence: Public Domain Mark
Credit: Clocks: sundials and other helio-observational equipment. Engraving by T. Jefferys. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/V0024400/full/800%2C/0/default.jpg)