reflecting galvanometer scale
Datecirca 1875
Inventory Number2007-1-0236
ClassificationGalvanometer Scale
Subject
Maker
American
Cultural Region
Dimensions9.2 × 56.8 × 8.5 cm (3 5/8 × 22 3/8 × 3 3/8 in.)
blue board box: 14.6 × 69.5 × 43.2 cm (5 3/4 × 27 3/8 × 17 in.)
blue board box: 14.6 × 69.5 × 43.2 cm (5 3/4 × 27 3/8 × 17 in.)
Material
DescriptionWood frame holds translucent paper scale between two panes of glass. Brass legs secure frame to iron rods that serve as feet. Extra holes from an earlier support mechanism are in each top corner of the wooden frame.
Signedunsigned
L. E. Knott Apparatus Company
Date: circa 1912
Object number: 2007-1-0237
L. E. Knott Apparatus Company
Date: 1896-1900
Object number: 2007-1-0239
L. E. Knott Apparatus Company
Date: circa 1906
Object number: 2007-1-0238
Leeds & Northrup Company
Accessories: light source clamped to base
Object number: 2012-1-0033
L. E. Knott Apparatus Company
Date: ca. 1896-1930
Accessories: black painted metal rod
Object number: RS0938
Leeds & Northrup Company
Date: circa 1905
Object number: 1997-1-0281