1880 IMPORTANT ROBERT MUENCKE BERLIN ELECTROMAGNETIC STATIC ELECTRICITY DEVICE

Description

Believed to be an early example of a solenoid electro-magnetic medical or laboratory air valve all in original aged patina, not cleaned or polished in any way.DESCRIPTION
Builders name: Robert Muenke – Berlin
Circa 1880 – Electromagnetic Laboratory Valve Details include:2.5\” diameter removable brass bezel 2 ‘’ diameter glass panel revealing electro-magnetic mechanism including twin 5/8\” diameter x 1\” long silk covered wire field coils w/ steel plate to metering valve, orig coiled wire to twin case mounted wire terminals each with neriled clamp screw. Inner case w/ maker\’s name stamped in brass. Weight 2.5lbs. Overall length over tube fittings 5 3/4\” Other fine details include: 2 1/2\” diameter x 1 3/8\” deep case with case mounted valve adjustment screw and twin 1 1/4\” long ribbed tubing connectors.  Believed to be an early example of a solenoid electro-magnetic medical or laboratory air valve all in original aged patina, not cleaned or polished in any way. Tested with 2 volts DC by Variac – in working order. See photos In excellent condition with aged patina as removed from Smith College Laboratory Storage Collection. We have acquired numerous items from this collection that will be offered. ROBERT MUENCKE, 58 Luisenstrasse, BERLIN, N.W., Luisenstrasse 58, Merchant and Manufacturer of BACTERIOLOGICAL, HYGIENIC &; CHEMICAL APPARATUS &; APPLIANCES.
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Wagner Electric Mfg Co St. Louis MO D.C. Ammeter Vintage Electrical Instrument
This is an old large and heavy ammeter, and is being sold in “As Found” condition.
BEAUTIFUL ART  NOUVEAU STYLE FACE PLATE.
measures approx. 7" IN DIAMETER, AND 8.75" DEEP.  WEIGHS 10 LBS UNPACKAGED.
see pics for close ups details.
Please look closely at pictures, as they are part of the description. I describe items to the best of my knowledge.  Items will be packaged and shipped carefully.
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Condition description is just my opinion.  I am not an expert or an authority on anything nor are any of my items certified in any way.
Items sold as used/vintage/new old stock may need additional cleaning as they are used/vintage/new old stock and as pictured.
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