Astronomy: the open air observatory at Peking. Halftone after E.N.A..
- Reference:
- 46267i
Licence: Public Domain Mark
Credit: Astronomy: the open air observatory at Peking. Halftone after E.N.A.. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/V0024776/full/800%2C/0/default.jpg)
Licence: Public Domain Mark
Credit: Astronomy: the open air observatory at Peking. Halftone after E.N.A.. Wellcome Collection. Source: Wellcome Collection.