VINTAGE MIT LINCOLN LABS TINSLEY INSTRUMENTS GALVANOMETER

Description

VINTAGE MIT LINCOLN LABS TINSLEY INSTRUMENTS GALVANOMETER.
Boston MA estate sale find.
Looks complete but I have no idea what it doe or how it works.
Selling as is so please see all photos and email with any questions before bidding
Really neat antique Louis C. Eitzen New York Visgage Saybolt Seconds Instrument Cased. Metal, glass & brass instrument cased with glass window in finger joint wood box. Marked as pictured. Box Measures 9 1/2" long. Sold in as is condition, not sure if instrument is complete or working properly.