TELEGRAPH GALVANOMETER
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Item owner - FNM
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Category - FNM collection
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Inventory - 0415
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Author - Gerosa
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Dimensions - 10x10x3cm
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Dating - 1900-1960
Square wooden box containing a round window with a dial under it and an indicator needle in the centre, with a scale of 60 - 0 - 60. In the upper part are two terminals and a copper ring.
It was inserted in the telegraph circuit to measure current.