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Lot 30

A 'HEINRICI-STYLE' HOT AIR ENGINE,
BY ERNST PLANK, CIRCA 1885,

22 September 2015, 13:00 BST
London, Knightsbridge

Sold for £350 inc. premium

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A 'HEINRICI-STYLE' HOT AIR ENGINE, BY ERNST PLANK, CIRCA 1885,

The hot cylinder is sectioned to expose the brass displacer. The crankshaft is carried in A-frames and the working cylinder is fitted with a screw relief valve. 11 ins (28cm) high x 5 1/2 ins (14cm) wide

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