Artworks valued at more than £100 million, including a Gauguin which has been unseen for 15 years, have gone on display ahead of their sale next week.
Paintings by Magritte and Picasso, as well as a pastel by Degas - each with a multimillion-pound estimate - are also being exhibited.
They will go under the hammer at the first major art auction of the year - Christie's Impressionist and Modern sale in London on February 9 and 10.
Gauguin's Nature Morte A L'Esperance has the highest estimate in the sale, expected to fetch between £7 million and £10 million.
It was painted in 1901 and shown at the artist's first landmark Retrospective in 1906.
Other notable works include Sur L'Imperiale Traversant La Seine by Picasso - again from 1901 and expected to fetch up to £3 million.
Together the works have a pre-sale estimate of up to £130.9 million and are being shown at Christie's in London's King Street until Wednesday.
The sale follows a record-breaking year for Christie's in 2010, which saw annual sales of £3.3 billion - a new high.