TWO pictures by LS Lowry are to go on display - minus their ketchup stains.

A drawing (1957) and oil painting (1959) both show views of the Thames at Greenwich and had been held in a private collection since the 1970s.

Since they were first bought, the pictures have been looked after and enjoyed not only by the original owners, but also by their children and grandchildren.

Having been displayed in a family home for so long the oil painting had a light layer of surface dirt, including what the current owners feared may be two small, and very old, ketchup stains.

Neither has been exhibited in public before but both will go on display at The Lowry, home to the world’s largest public collection of work by LS Lowry, in December.

They relate to a much larger work by the artist, View of Deptford Power Station from Greenwich (1959), which is currently in the National Maritime Museum’s collection in London.

Claire Stewart, curator of The Lowry Collection, said: “Lowry was a regular visitor to London, but his views of the city are relatively rare.

“The best known are his paintings of Piccadilly Circus, which are busy with cars and pedestrians. His fascination with waterways, however, meant he was obviously drawn to the Thames, and these works are a great example of that.

“It’s very exciting to be able to display pictures which will be completely unknown to our visitors and I am very grateful to the owners for all their help in arranging the loan and getting the works ready for display.”

The Lowry is home to the world’s largest public collection of work by LS Lowry. The free exhibition is open seven days a week from 11am until 5pm (10am on Saturdays). For details, visit thelowry.com