38ft mackerel driver (circa 1870); 40ft mackerel driver (circa 1870)

Graduated bar scale. A plan showing the overlaid sheer lines, body drawings and longitudinal half-breadths of a 38ft and a 40ft mackerel driver (both circa 1870). The plan was draughted by Philip Jesse Oke at Plymouth in March 1937 after drawings by William Painter, St Ives.