1838 Charles Knight registered his 'Patent Illuminated Printing'
whereby wood or metal relief blocks, or both, sometimes up to 16
in number, were placed on a rotating table and successively brought
into alignment with the paper before the ink had time to dry between
each colour printing. Effective results were achieved, as seen here
in the ragged dark brown stones which frame the delicate, lighter
arches and columns which fade into the background. Although these
prints reached a wide market, Knight was unable to maintain his