2 eyepieces with cross-hairs
Date: 1875-1900
Inventory Number: 2007-1-0328
Classification: Eyepiece
Dimensions:tallest: 10.5 × 2.5 × 2.5 cm (4 1/8 × 1 × 1 in.)
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.