A watercolour design for the construction of the Thames Tunnel, part of an archive sold at Bonhams for £160,000.
An archive of designs for Brunel’s Thames Tunnel sold at Bonhams was bought by a museum dedicated to the pioneering structure to form part of its extensive expansion plan, writes Tom Derbyshire.
The family archive of engineering and architectural drawings and designs for the projects of Marc Isambard Brunel (1769-1849) had been offered in 14 lots last November and sold for a total of £224,500.