The world's two largest auction houses, Sotheby's and Christie's, will auction works by masters of naive art and symbolism. The Sassoon Codex, named after its best-known owner, David Solomon Sassoon (died 1942), dates from the year 900 CE and represents one of the most expensive manuscripts on the antiquarian book market.

On May 16 the painting Insel am Attersee (1901-1902) by the Austrian painter Gustav Klimt will be offered for the first time.