Auctioneer gave painting an estimated value of 98,000 . It was thought to be the work of a follower of renaissance master El Greco . But final price suggests unsigned work may have been done by the artist . Painting of saint was acquired by owner 's father in the 1970s for very little .
Auctioneer gave painting an estimated value of between £300 and £400 . It was thought to be the work of a follower of renaissance master El Greco . But final price suggests unsigned work may have been done by the artist . Painting of saint was acquired by owner 's father in the 1970s for very little .