sectioned (longitudinally) terrestrial refracting telescope
- Made:
- 1780-1900
sectioned (longitudinally) terrestrial refracting telescope, 1-draw mahogany and brass tube, non-achromatic, unsigned, late 18th century. Shutter dust-caps at both ends; length closed 10 11/16-inch; object glass 11/16-inch. Original form of 3-lens eyepiece [Telescope sectioned 1958]
Details
- Category:
- Optics
- Object Number:
- 1917-49
- Materials:
- mahogany (wood), copper (alloy) and glass
- Measurements:
-
overall: x 350 mm x , 35 mm, .245kg
- credit:
- Court, Thomas Henry