George Stubbs dog painting expected to sell for up to $2.5 million at auction

A painting by British artist George Stubbs is expected to sell for up to £2 million ($2.5 million) in London next week, as it comes to auction for the first time in more than 50 years.

​ A painting by British artist George Stubbs is expected to sell for up to £2 million ($2.5 million) in London next week, as it comes to auction for the first time in more than 50 years. Read More Breaking News, Latest News and Videos | CNN