The house in the picture is now a national monument. Originally, in 1820, it stood in Zaandam. It was the shop where Albert Heijn started his grocery, which has become the international concern Royal Ahold NV. In 1965 the shop was moved to the Zaanse Schans and is now a sort of museum.
In the picture the flag is half mast because a few days earlier, Albert Heijn, grandson of the founder of the Ahold Concern and ex chairman of the Board, was deceased at the age of 83.