plano-convex lens on a telescoping brass stand
Date: 1850-1880
Inventory Number: 1997-1-1545
Classification: Lens
Dimensions:40.3 x 12.7 x 11 cm (15 7/8 x 5 x 4 5/16 in.)
Description:
This is a 10 cm plano-convex lens mounted in a swiveling brass frame, which is itself mounted atop a telescoping brass stand.
The base is marked with old Harvard inventory numbers: "10 27" and "01" in black ink.