Electrostatic Lab Equipment (3) - Brass, Iron (cast), Ebonite - 19th century

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Brass hollow sphere with iron needle isolated on metal base (circa 1800 France)
Brass hollow sphere (open at the top) isolated on a metal base (circa 1800 France)
Ebonite bar encased in brass on a heavy cast iron base (circa 1900 France)
All three in beautiful condition for their age 67605895 Read more