Objective 6 1/2-inch Aperture Glass in Case, for Cooke Refracting Telescope
Objective Glass of 6 1/2-inch aperture for telescope by Thomas Cooke, York, 1851. In mahogany case.
- Materials:
- mahogany (wood) , steel (metal) and glass
- Object Number:
- 1986-1243 Pt2
- type:
- components and objective lenses