Leonardo da Vinci bear drawing expected to fetch £12m at auction

Head of a Bear is to be sold in London in July by Christie's auction house

A drawing of a bear by Leonardo da Vinci is expected to fetch up to 12m at auction.

The picture, titled Head of a Bear, is being sold in London by Christie's. It will go on display in New York and Hong Kong before being auctioned and is expected to fetch between 8m and 12m, according to the auction house.