A hydrogen balloon flying high above the clouds with the sun shining on it. Coloured wood engraving.
- Reference:
- 36298i
Licence: Public Domain Mark
Credit: A hydrogen balloon flying high above the clouds with the sun shining on it. Coloured wood engraving. Wellcome Collection. Source: Wellcome Collection.
![no text alternative](https://iiif.wellcomecollection.org/image/V0040860/full/800%2C/0/default.jpg)