5902919 A Diving Machine on a New Constitution, pub. 1806 (hand coloured engraving) by Rowlandson, Thomas (1756-1827); Private Collection; (add.info.: Political cartoon on the imposition of a 10% tax on pig iron and home brewed beer in 1806 by the then Whig government. Thomas Erskine (1750 - 1823); William Windham (1750 - 1810); Henry Petty-Fitzmaurice (1780 - 1863); Charles James Fox (1794 - 1849); Richard Brinsley Sheridan (1751 - 1816);); The Stapleton Collection.