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eyepiece with focuser
Date: 1870-1890
Inventory Number: 1998-1-0376
Classification: Eyepiece
Subject:
Maker: Robert B. Tolles ? (1823 - 1883)
Maker: Charles X. Dalton ? (1840 - 1912)
Cultural Region:
Place of Origin:
Dimensions:
3.9 × 3.9 × 13.9 cm (1 9/16 × 1 9/16 × 5 1/2 in.)
Material:
Description:
Eyepiece made of nickel, brass, and hard rubber with very fine threads typical of the work of Tolles and Dalton. Draw tube focuser.
In Collection(s)
Signedunsigned
Curatorial RemarksCould be astronomical eyepiece for a Tolles telescope, or possibly for a microscope.