Richard Carlisle, To Henry Hunt, Esq., as chairman of the emeeting assembled in St. Peter’s Field, Manchester, sixteenth day of August, 1819, and to the female Reformers of Manchester and the adjacent towns who were exposed to and suffered from the wanton and fiendish attack made on them by that brutal armed force, the Manchester and Cheshire Yeomanry Cavalry, this plate is dedicated by their fellow labourer, Richard Carlile: a coloured engraving that depicts the Peterloo Massacre (1 October 1819), Manchester Library Services. This image is in the public domain in the United States because its copyright has expired. Courtesy of Wikipedia Commons: http://en.wikipedia.org/wiki/File:Peterloo_Massacre.png