Vintage Leeds & Northrup L&N 2666 Ayrton Galvanometer Shunt 10,000 Ohms

Vintage Leeds & Northrup 2420 B Light Beam Galvanometer Wood Box

Antique Galvanometer Scientific Instrument

1950s Vintage Leeds & Northrup Galvanometer in Original Wood Box

Vintage Leeds & Northrup Galvanometer Current Detector Meter Philadelphia USA

Vintage Leeds & Northrup Co. Type P reflecting galvanometer Model 2239-a

Leeds & Northrup Co Galvanometer Light Beam Scientific Lab Instrument 2420 - A

Vintage Leeds & Northrup Reflecting Galvanometer