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全部拍賣 / Nautica, Technica & Optic / Ferranti Three-Phase AC Kilowatt-Hour Meter for 110 Volt Sup...
Ferranti Three-Phase AC Kilowatt-Hour Meter for 110 Volt Supply ** A vintage Ferranti English three-phase alternating current energy meter designed for measuring electrical consumption in a 110 volt AC system. The instrument is fitted with a precision dial mechanism comprising three black register dials marked for 100, ten and one kWh divisions, together with three red auxiliary dials providing finer measurement resolution. The contrasting black and red pointers and multiple calibrated scales reflect the precision electromechanical engineering employed in industrial energy measurement instruments of the period ** From the David Read Collection
估價:$79.3
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$79.3
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