Engineering: a worm gear and spur gearwheel, side and end elevations. Coloured drawing, 1845.
- Date:
- 1845
- Reference:
- 46093i
Licence: Public Domain Mark
Credit: Engineering: a worm gear and spur gearwheel, side and end elevations. Coloured drawing, 1845. Wellcome Collection. Source: Wellcome Collection.
