4) Portable Potentiometer in sturdy  mahogany case (latches and hinges in good shape) Slight  shrinkage separation ( not split)  in lid. Instrument has D.C.

 galvanometer by Ripley  and is signed by the Triplett Electrical Instrument Company, Ohio          $75.
Duncan Robert Antiques

Always the Unusual

Copyright Duncan Robert Antiques 2007.  E&O E.

 1)         Superb  near mint  large             (length 18”) Potentiometer.       Leeds & Northrup. Glass       vernier intact       $225.

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2)               Potentiometer ( to 1000 volts)  by  Leeds & Northrup. Length   13” with a  beautiful flame mahogany lid.

            Lovely condition.    $165

 

3) Left— Slide Potentiometer  signed by Wm Gaertner &        Company Chicago. Lovely condition with rings        for wall mounting and also bun feet. Shows well.                                $55.00