print. coloured lithograph. 'Britannia Tubular Bridge over the Menai Straits taken during its construction in May 1849... from the Angelsea Shore NE of the Bridge.../ G. Hawkins. Printed and published Day & Son, 17 Gate Street, London, Novr 1849. bridge engineered by Robert Stephenson. overall 52.5x71.2cm. image 38.2x59.5cm.