7-inch concave telescope mirror
Date: circa 1900
Inventory Number: 1997-1-0080
Classification: Mirror
Maker: American
User: Harvard College Observatory ? (founded 1839)
Cultural Region:
Dimensions:
18 x 18 x 1.7 cm (7 1/16 x 7 1/16 x 11/16 in.)
Material:
Description:
Concave mirror for a telescope of approximately 7-inch aperture. Glass with front silvering. Much of silvering is gone.
Signedunsigned