The Spanish Pointer has not been seen by the public since 1972, when it sold for £30,000

George Stubbs’s celebrated painting of a Spanish pointer dog is to be auctioned at Sotheby’s for the first time since 1972.

The 18th-century painting is being offered for auction at £1,500,000-2,000,000. It was last auctioned for £30,000 in 1972, and fetched £11 when it was auctioned in 1802.