A rare 17th Century Chinese mainly copper and mahogany model of a twin cylinder portable fire pump,

細節
A rare 17th Century Chinese mainly copper and mahogany model of a twin cylinder portable fire pump,
the wooden tank with carved decorated sides and copper bound top edges and mounted on two skids with removable pump block with wooden hand lever (later) operated twin double acting pumps and centrally mounted receiver with plug flow valve and metal pipe connections, brass bound mahogany filler/filter trough and demountable chains, finished in lacquer and aged gilding -- 10½in x 14in. (26.2 x 35.5cm.) excluding pump lever