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|Date of Creation||1 Oct 1848|
|Description||Annotated side elevation and vertical and longitudinal sections (verso of PER/7/4/1). Includes notes. Scales 3 inches: 1 foot and 2 inches: 1 foot. Inscribed 'It would improve the machine if the spun wheel was on the outside of the driving wheel'. Signed by Andrews.|
|Media||Ink and watercolour on paper|