Aerometer for German vehicle. Wooden box with functional fasteners. Markings on the lid Betriebsstoffprüfer Norma DRGM. Interior lined in blue cloth. Manufactured by Köhler Glas Companie Urdometer Thermometer and Glasintrumentenfabrik Ilmenau Thüringen. All glass accessories are present. Some wear and patina. Condition II+. Aerometer for German vehicle. Wooden box, the closures are functional. Markings on the lid Betriebsstoffprüfer Norma DRGM. Interior lined in blue cloth. Manufactured by Köhler Glass Company Urdometer Thermometer and Glasintrumentenfabrik Ilmenau Thüringen. All glass accessories are present. Note some wear and patina on the piece. State II+.

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.