The 2ft x 2ft 6in (62 x 76cm) work is on offer at Dobiaschofsky in Berne on May 5-8 with a guide of SFr5000.
It is certainly closely related to the corresponding composition in a set of four paintings by Dünz in the Art Museum in Berne. They are among the very few still-lifes he painted.
Dünz was born in 1645 as the ninth of 14 children of the painter Hans Jakob Dünz. After training with Albrecht Kauw, he started his career by executing preparatory drawings for book illustrations, which were completed by his teacher. He later set up his own studio and began working as an independent artist.
From the 1670s onwards he received numerous commissions from patrician families and soon established himself as the leading portraitist in the Swiss capital.
It is thought that he gave up portraits c.1710, not least because his antiquated style of painting had gone out of fashion. When he died in Berne in 1736, he was the oldest inhabitant of the city.