Cancrin,F.L. Erste Gründe der Berg- und Salzwerkskunde. Part 7, first (of two) sections containing mechanics, hydrostatics, aerometrics and hydraulics. Frankfurt, Andreä 1777. Title vign. and 19 (of 20) folded copper plates. Copper plates. 4 p., 276 p., 18 p. Hprgt. d. With reeded boards. (rubbed). Ferchl 83. Humpert 4006. first edition. - Plate 20 missing, some edges of plates dusty and somewhat damaged. - ╔Including: Eversmann,F.A.A.╗ Uebersicht der Eisen- und Stahl-Erzeugung auf Wasserwerken in den Ländern zwischen Lahn und Lippe. Main part (= vol. 1 of 2). Dortmund 1804. without the 3 copper plates. - ╔Dechen,H.v.╗ Die nutzbaren Mineralien und Gebirgsarten im Deutschen Reiche... Bln. 1873.

Composed of several subsidiaries, the Drouot Group is a major player in the art market. Hôtel Drouot, located in the heart of Paris, has been the world's largest public auction center since 1852. 15 salerooms are available to more than 70 auction houses. The emulation generated by an annual offer of 230,000 artworks from 21 major specialities - from Antiquity to street art - attracts some 3,000 visitors every day. The Group's digital platform, Drouot.com, offers digital sales - Live auctions (live broadcasting and participation in auctions), Online-only auctions (dematerialised auctions) and Buy Now sales (sales of lots at fixed prices). Nearly 2 million items are offered annually by 600 auction houses. Auction news is reported every week in La Gazette Drouot, the leading weekly magazine for the art market and culture published by Auctionspress.