- Subject
- Microscopy
- Item type
- Object
- Dimensions
- Height: 20mm Width: 60mm Depth: 55mm Weight: 37g
- Inventory No
- 44613
Description
Thorp’s transparent replica of Rowland metal diffraction grating. 14478 lines to the inch. Mounted on a rectangular piece of glass and housed in small black case lined with deep blue velvet. 'June 1909' handwritten in pencil on the edge.
