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Description: Induction coil, in rectangular walnut case, with two dry batteries, two complete electrodes and three electrode heads, made by J.J. Griffin and Sons Ltd, London, English, c.1920 License: http://creativecommons.org/licenses/by-nc-sa/2.5/ Subjects: induction coils Temporal: 1920 Source: Science Museum Creator: J.J. Griffin and Sons Ltd. (maker) Identifier: A112148 Go to resource More Like this...
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