Sorry for the late response.
In 2014 we had some contacts with wikipedians but finally we don't make any collaboration.
The "problem" was intention from the wikipedians to include contents from the museum (www.mah.ch) under Creative Commons Licenses in the Wikimedia Commons project but the museum don't agree.
I think that a collaboration is a great idea but finding an agreement between Wikimedia and the museum can be difficult. For what I know about the copyrights management in Italian museums the situation is not better has in Switzerland, but maybe in small museums it's easier...