Optical parts of Lassell's telescope:- prism for 9-in reflector in green cardboard box

Optical parts of Lassell's telescope:- prism for 9-in reflector in green cardboard box; 3 multiple eyepieces; 5 small eyepieces; plane speculum on arm for 9-in; speculum for Newtonian finder in tin case 4 eyepices; 4 diaphragms (3 in two tin cases and one in wood case with metal lid)

Details

Category:
Astronomy
Object Number:
1921-819
Materials:
metal, glass and cardboard
type:
concave mirrors, metal mirrors and erecting prism
credit:
Mr Thomas H. Court