2 Tolles solid ocular lenses unmounted

Date: 1860-1874

Inventory Number: 1045s

Classification: Microscope Optics

Subject:

optics, geology, biology, medicine, microscopy, botany,

Maker: Robert B. Tolles (1823 - 1883)

Maker: Boston Optical Works (fl. 1867 - 1895)

Maker: Charles X. Dalton (1840 - 1912)

Cultural Region:

United States,

Place of Origin:

Boston, Canastota,

Dimensions:

canister: 4.8 x 2.8 x 2.8 cm (1 7/8 x 1 1/8 x 1 1/8 in.)

solid lens element: 2.5 x 1.1 x 1.1 cm (1 x 7/16 x 7/16 in.)

solid lens element: 2.4 x 1.2 x 1.2 cm (15/16 x 1/2 x 1/2 in.)

Material:

glass, brass,

Description:

2 Tolles solid ocular lenses unmounted, stored in a canister. Lid is missing. Bottom of canister is marked "I In."

In Collection(s)

Tolles microscopes

Signedunsigned

Curatorial RemarksSee the file for 1045 for more details on the types of optical elements, their dates, and how they performed under tests by Ebenezer Gay.