NEW YORK - A rare watercolour study by Paul Cezanne believed lost and last seen in 1953 is expected to fetch up to $20 million when it's auctioned in New York.

It's being offered May 1 at Christie's.

The work was rediscovered this year in the collection of the late Dr. Heinz Eichenwald of Texas. The study was for a painting in the series "Card Players," created between 1890 and 1896.

The five-painting series was recently part of a travelling exhibition organized by the Metropolitan Museum of Art and London's Courtauld Gallery.

The study depicts a card player wearing a hat and jacket, rendered in hues of blue and ochre.

It was previously known only from a black-and-white photograph.