Signedon top: LEEDS & NORTHRUP CO. / PHILADELPHIA / 127473 / MADE IN U.S.A.
Inscribedmetal knobs all labeled: 100
beneath binding posts: THOUSANDS
tag found with instrument: Resistances of 0, and 5, 100 000 / Seems in prestine condition!! Each 100,000 made up of 5 small spools total 25 / From Jeff Lab Physics 3 / 127473
FunctionSuch an instrument is used to measure the resistance of electric conductors. For a short general description and other images, go to the following website.
This instrument is designed for use with very high resistances.
ProvenanceFrom the Department of Physics, Jefferson Laboraroty, Harvard University.