Science: a pair of blow-pipes (above), and a calculating engine (below). Wood engraving, 1841.
- Date:
- 30 October 1841
- Reference:
- 46073i
Licence: Public Domain Mark
Credit: Science: a pair of blow-pipes (above), and a calculating engine (below). Wood engraving, 1841. Wellcome Collection. Source: Wellcome Collection.
