Art Brut - Maaß, Matthias. Cheerful. 3 watercolors over India ink on wove paper. Each signed and dated lower left and upper right, one sheet titled. 2007/2008. sheet dimensions: each 21 x 14.5 cm. The works will be included in the catalog raisonné of the "Matthias Maaß Collection Kampik". - Matthias Joachim Maaß (1958-2019) began drawing and painting professionally in the 1980s. He is considered one of the best-known Heidelberg artists with experience of psychiatry. There are over 90 works by the artist in the Prinzhorn Collection. - Mounted all around under passepartout on verso, in very good condition. - Provenance: Private collection Baden-Württemberg.

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.