1000 Piece Puzzle. Nasmyth’s patent steam hammer, 1844.

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1000 Piece Jigsaw Puzzle. Nasmyth’s patent steam hammer, 1844. Diagram of the …novel machine, which has just been set to work at the Royal Dock-yard, Devonport [in Devon], for the purpose of forging in the most rapid and perfect manner all descriptions of large wrought iron-work required for the naval service. The machine is Mr. James Nasmyth’s Patent Direct-action Steam Hammer, by means of which, no mass of wrought iron, however large, is beyond the compass of its powers; while such is its managability, that at one moment it may be heating a

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