Two London delftware drug or apothecary jars c.1740-50, each painted in blue with a cartouche surmounted by a shell flanked by putti holding flower stems, one inscribed `UNG. ALB. C.`, the other `UNG: CAERUL`, some glaze loss and stabilising, 19cm max. (2) Unguentum Album was an ointment made with white lead, egg white and oil of roses, used in the treatment of burns. Unguentum Caeruleum (The Blue Ointment) was made from mercury, hog`s lard and turpentine and was thought to guard against venereal disease.