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Print. zincograph, of stipple engraving [ca1840]. Sir I.M. Brunel, F.R.S. Engineer of the Thames Tunnel/ London J.T. Wood, 9, Currier's Hall, London Wall [ca.1860-70] 15x11.5cm. Portrait, Brunel Marc Isambard 1769-1849, HL looking L, holding roll plan of Thames Tunnel. Wood J. T. fl.1840