""A Catalogue of Impressions in Sulphur: Of Antique and Modern Gems from Which Pastes are Made and Sold"" is a book written by James Tassie in 1775. The book is a comprehensive catalogue of impressions in sulphur of various antique and modern gems that were used to create pastes that were sold during that time. The book is a valuable resource for art historians, gemologists, and collectors who are interested in the history of gemstones and the techniques...