A circular stamp of concentric rings, impressed, about one inch in diameter. In the centre a crown, and in surrounding ring the words “Clews Warranted Staffordshire.” After 1819 the Cobridge works passed into the hands of Mr. James Clews, who continued them until 1829, when they were again closed and remained so until 1836, when they were opened under another firm name. Mr. Clews came to America, and an account of his enterprise here is given on page 97 _et seq._ This mark is not given by Chaffers, who calls the firm J. & R. Clews, and says they made “pale cream-colored ware.” During the ten years that Mr. Clews owned these Cobridge Works some of the richest pieces of dark blue color that were ever made by any potter took the form of pieces bearing American historical designs, and bear the last-mentioned stamp. The mark of an open crown surmounting the words “Clews Warranted Staffordshire” appears on a set, “Picturesque Scenery.” Upon the back of each piece appears also the colored stamp which was placed by the manufacturers to designate this set, all of which were printed with American views. It is a little landscape of pines and a sheet of water with a sloop. This scene is crossed diagonally with an oblong stamp bearing the words “Picturesque Views,” and the name of the special view printed on the face of the piece; for instance, “Penitentiary in Allegheny nr Pittsburgh Pa.” This set of views of “Picturesque Scenery” was of much later date than the rich dark blue pieces, being printed in sepia, green, chocolate, or plum color, thus showing the degraded taste of the second quarter of the century. An impressed mark of Rogers appears sometimes in conjunction with an eagle stamped in blue. Occasionally, also, the eagle is seen without the Rogers mark. Sometimes the chemical sign for iron is found with these marks. The firm of Rogers was in existence in Burslem until 1849. A circular impressed mark, one inch in diameter, with a star in the centre, surrounded by words “Joseph Stubbs Longport.” This mark is not given by Chaffers, nor the name of the manufacturer or manufactory. Jewitt, who gives no marks, says that he was a successful potter at Dale Hall from 1790 to 1829, preceding T. Mayer at his pottery, and thus proving that pieces with the Stubbs mark are the earlier of the two. The circular mark of “Stubbs & Kent, Longport,” also unknown in England, appears on many pieces; for instance, the dark blue basket and rose, and the milkmaid designs so common on toilet and dinner services. Still another impressed mark of “Stubbs” alone, in capital letters, appears on many American historical pieces, particularly on the ones with what is known as the eagle, rose, and scroll border.