A Guide to the Knowledge of Pottery and Porcelain, and Other Objects of Vertu. Comprising an Illustrated Catalogue of the Bernal Collection of Works of Art, with the Prices at which They Were Sold by Auction, and the Names of the Present Possessors. To which are Added an Introductory Essay on Pottery and Porcelain, and an Engraved List of Marks and Monograms