Every spring, Koller runs a sale that spans a wide range of fields, from jewellery to furniture, carpets, manuscripts and drawings, not forgetting, of course, the paintings – one of the auction house’s specialities.

Organised in Zurich, the 2018 sale kicks off on 19 March with manuscripts, featuring a work on volcanoes by William Hamilton, published in the 18th century (50,000 to 70,000 CHF).

In the jewellery section, held on 21 and 22 March, mention must be made of the pear-shaped emerald-studded earrings set off with diamonds (50,000 to 80,000 CHF).

For ladies who prefer rubies, the auction house is selling a ring with a Tajikistan stone surrounded by diamonds (60,000 to 80,000 CHF).

The next morning, furniture, porcelain and silverware will take the stage: connoisseurs can find some famous stamped pieces, such as the Louis XV desk with bronze fittings (90,000 to 140,000 CHF) by Jacques Dubois, the king’s cabinetmaker who specialised in upper-end furniture for wealthy clients.

Also likely to turn heads while exhibiting a different and more exuberant style is a sumptuous painted cabinet with floral motifs – probably produced in England in around 1700 (70,000 to 120,000 CHF). A similar model is conserved in the Getty Museum’s collections in Malibu.

The sale’s next chapter covers paintings by Old Masters, on 23 March, and Koller will again offer a wide variety of genres, styles and subjects. Portraits are well represented, and include one of Paolo Gregorio Raggi, painted by Bernardo Strozzi who was active in Genoa, then Venice, at the start of the 17th century (180,000 to 250,000 CHF).

Art lovers will also be drawn to the portrait of Anna Sophia Herbert, the Countess of Carnavon, by Van Dyck (80,000 to 140,000 CHF) or else the vanitas featuring musical instruments by Carstian Luyckx, a 17th century Flemish painter who studied in the studio of the Flemish Baroque painter Frans Francken III (30,000 to 40,000 CHF).

All Koller’s lots are on view on Barnebys.