Many of the artists donated works, to help the museum.
He donated more than 160 works for the new wing.
The artist donated 18 original works which raised $17 000.
She collected art and donated many works to various institutions.
The benefactors continue to donate new works to the collection.
In 1992, he donated works by many young British artists, a gift estimated then to be worth about $170,000.
This led to "gaps" in the museum's collection, which is made up of works donated by each new member.
In the Netherlands, there was, until recently, a program under which visual artists received higher benefits if they donated works to the state.
The building was completed in 1920, and Heckscher donated 185 works to start the collection.
There will also be a raffle of works donated by visual artists.