The Geelvinck Hinloopen Huis closed in 2015. It is no longer open to the public.
The Geelvinck Museum has entered into a cooperation with the Pianlo Museum, because they both have a comparable collection of piano's and pianola's. At the momnet it is not very clear what the cooperation includes, but we'll update you here as soon as more information becomes available.
Geelvinck Hinlopenhuis