, Arab with Dagger (1945), Modern and Contemporary African Art, Bonhams, London, 17 March. Estimate: £700,000-£1m The South African artist Irma Stern painted this dagger-brandishing rogue during a six-year period between 1939 and 1946, when she travelled frequently to the island of Zanzibar and spent time with its Arab community. The picture’s frame was repurposed from one of the many distinctively decorated door frames found throughout Zanzibar. The work reflects “the fatalism and deep spirituality that the artist found among the Arab people”, says Giles Peppiatt, the director of the Modern and Contemporary African Art department at Bonhams. Works from Stern’s Zanzibar period are among her most coveted—Arab Priest (1945) achieved £3m in 2011 at Bonham’s in London, which was an auction record for Stern. It was bought by the Qatar Museums Authority and will be part of the collection of the Orientalist Museum in Doha, when it eventually opens.