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21 1 Detail: Salomon van Ruysdael (1603‒1670). Landscape with a herd of cows. Oil on panel. 76.5 × 115 cm. Estimate: CHF 25 000/35 000 2 Pieter de Hooch (1629‒1683). Musical gathering in an interior. After 1680. Oil on canvas. 68.5 × 82.5 cm. Estimate: CHF 50 000/70 000 3 Balthasar van der Ast (1593‒1657). Still life. Oil on panel. 30.9 × 26.1 cm. Estimate: CHF 200 000/300 000 4 The Seckendorff commode by François Lieutaud. France, Paris circa 1728/30. 80 × 130 × 65 cm. Estimate: CHF 150 000/250 000 From15 to 19 June we will hold our auctions of art from theMiddleAges through the19thcentury, whichwehad to postpone in March due to the coronavirus-related measures. These sales feature artworks of outstand- ing quality from several important private collections. A chest of drawers by the ébéniste François Lieutaud, commissioned by the Margrave of Brandenburg-Ans- bach, Carl-Friedrich-Wilhelm, circa 1728/30, comes from a former courtly collection (ill. 4). A beautiful ex- ample of mechanical furniture from the renowned Ger- man workshop of Abraham and David Roentgen has an ingenious mechanism by which the shaped side table transforms into a complicated secretary desk. Its rich wooden inlays, known as marquetry "à la mosaïque", enjoyed great popularity during the Rococo period of the mid-18th century. A collection of paintings from the Golden Age of Dutch painting in the 17th century comprises masterly land- scapes by Salomon van Ruysdael (ill. 1) and Jan van Goyen, as well as still lifes by Peter de Hooch and Isaac Denies. In addition to this hand-picked selection of Dutchmasters, the oldmasters paintings sale presents one of the earliest fruit still lifes by the Milanese female artist Fede Galizia. Bicci di Lorenzo's 15th-century de- piction of Saint Catherine is of remarkable artistic skill Preview of the Old Master & Decorative Arts auctions from 15–19 June 2020 Collecting as a private passion and impressive size, and was probably the central panel of a large altarpiece. In the early 19th century, La Chaux-de-Fonds was the centre of Swiss watchmaking, and François Ducom- mun-dit-Boudry was one of its most important mas- FOR FURTHER INFORMATION PAINTINGS Karoline Weser weser@kollerauctions.com FURNITURE Stephan Koller skoller@kollerauctions.com ONLINE CATALOGUES www.kollerauctions.com 2 3 4 Watch our videos online: François Ducommun’s astronomical clock, and Salomon van Ruysdael’s land- scape painting. ters. He made the "Copernican clock" offered in our June auction around 1820 with great precision and care. Clocks such as this served to impressively recre- ate the seeminglyminutemovements of the sun, earth and moon in the firmament. It is a masterpiece of pre- cision engineering and Swiss clockmaking.