26th Apr, 2019 12:00
Fine Photographica & Instruments of Science & Medicine
A Large Electrostatic Pith Ball Demonstration Apparatus
c.1900, English signed on a plaque to base, Griffin Garrick St LONDON', constructed of mahogany, with large hand-blown glass jar, mahogany uprights, circular support ring for pith balls (balls missing), height 58cm
c.1900, English signed on a plaque to base, Griffin Garrick St LONDON', constructed of mahogany, with large hand-blown glass jar, mahogany uprights, circular support ring for pith balls (balls missing), height 58cm
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Auction: Fine Photographica & Instruments of Science & Medicine, 26th Apr, 2019
