2 eyepieces with cross-hairs

Date: 1875-1900

Inventory Number: 2007-1-0328

Classification: Eyepiece

Subject:

optics,

Maker: American ?

Maker: German ?

Cultural Region:

United States, Germany,

Dimensions:

tallest: 10.5 × 2.5 × 2.5 cm (4 1/8 × 1 × 1 in.)

Material:

glass, brass, nickel,

Description:

Two nickel-plated brass eyepieces with black enameled eyecups. Outer diameter, 19.4 mm. One eyepiece is inserted into a long brass tube (o.d. 20.3 mm) with cross hairs. The other eyepiece also fits this tube.

Signedunsigned

Curatorial RemarksBy the same maker.