Clocks: a clock face (top), and mechanism (below). Engraving by A. Bell.
- Reference:
- 40929i
Licence: Public Domain Mark
Credit: Clocks: a clock face (top), and mechanism (below). Engraving by A. Bell. Wellcome Collection. Source: Wellcome Collection.
Licence: Public Domain Mark
Credit: Clocks: a clock face (top), and mechanism (below). Engraving by A. Bell. Wellcome Collection. Source: Wellcome Collection.