| Description | Bell Crank Engines (2 items).
4 horse power bell crank engine, with 13 inch cylinder, 2 foot stroke.
Coloured original and reverse side view of the engine and longitudinal section of the boiler, cross-section of the engine house, plan of the engine and boiler seating, cross-section of the boiler (2 sheets each with 4 drawings - the sheet of coloured orignals has 2 rough sketches on the back). The sheets bear letter codes.
Original Portfolio or 'Book' No. 506. Catalogue of Old Engines p. 254.
For John Gibb. Paisley, Renfrewshire.
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