© National Portrait Gallery, London
'The Lancashire Central Short Time Committee for Obtaining the Ten Hours Bill, 1850'
by Unknown photographer
albumen photomontage on card mount, arched top, 1850
7 1/2 in. x 11 3/8 in. (192 mm x 288 mm) image size
Given by John Herbert Dudley Ryder, 5th Earl of Harrowby, 1957