Antique Vintage - Hotel Mansion Ship Butler Servant Room Call Box

Antique Vintage - A.A.Z. - GALVANOMETER - Meter

Antique Vintage - JULES RICHARD - VOLTMETRE - Brass France Volt Meter

Antique Vintage - English Spyglass Monocular Folding Pocket Telescope with Case

Vintage British Griffin & George Limited Induction Coil - Scientific Apparatus

Vintage Keithley Instruments 602 solid state Electrometer.

Antique Thomson-Rice Voltmeter & Ammeter Electric Lighting Station Lynn MA

Jewell Vintage Electrical Instrument Co. Volt Meter Gauge