The conference. Book illustration from Library of Congress, British Cartoon Print

Print shows William Beckford rebuking Thomas Harley beneath which is printed a petition containing 14 points, "Instructions given to Sir Robert Ladbrooke, Knt. William Beckford, Esq; the Right Hon. Thomas Harley, Esq; and Barlow Trecothick, Esq; representatives of the city of London: by their constituents".

Catalogue of prints and drawings in the British Museum. Division I, political and personal satires, v. 4, no. 4269
Forms part of: British Cartoon Prints Collection (Library of Congress).
Published in: The American Revolution in drawings and prints; a checklist of 1765-1790 graphics in the Library of Congress / Compiled by Donald H. Cresswell, with a foreword by Sinclair H. Hitchings. Washington : [For sale by the Supt. of Docs., U.S. Govt. Print. Off.], 1975, no. 643.