Speculum objective by William Herschel

Object Type
Speculum Mirror
RAS Reference Number
[25] A
Category
Objective Mirrors
Description

One of Four 9-in speculum objectives, probably by Herschel; (one of) Four speculum mirrors; O= 9 in

Producer (maker/artist)
William Herschel
Associations
Herschel, William, 1738-1822