A rare lacquered-brass and ebony-mounted pantograph,

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A rare lacquered-brass and ebony-mounted pantograph,
signed on the maker's label W & S JONES, 30 Holborn London, with finely engraved scales, adjustable sockets, the castors with ivory wheels, with accessories including the silk-covered lead table weight, contained in the original mahogany carrying case with two brass hooks and eyes -- 37in. (94cm.) long

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