Electric shock machine – Joseph Gray, Sheffield. Electrotherapy.

Electric shock machine – Joseph Gray, Sheffield. Electrotherapy.




Country of manufacture

UK and Ireland

Categories: Medicine, Quack Medicine


Nice and clean with no splits to the case. Internals including magnet, are very clean. The dial to the lid signed ‘Joseph Gray and Son, Sheffield. Improved magnetic indicator’. With accessories including cranking key stored in a side drawer. With working lock and key. The small escutcheon piece is missing from around the key hole.

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GB Scientific Inspirations

Scientific Inspirations

I live in Lancashire (U.K.) and have been a dealer and collector of scientific and nautical instruments for a number of years. My stock has included some fine items from museums and colleges, which were surplus to their requirements. I occasionally purchase some interesting items from abroad, having established some reliable sources.

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