Permission museums to publish their work?

[Синица]

Do not bother to delve into the legislation, but it seems that museums do not have the right to prevent use of the image, if there is a link to the museum and if the exclusive right to work belongs to the museum (t.e.gosudarstvu). It should be clarified.
In our case, we entered into contracts with the museum. The procedure is simple - a letter addressed to the Director, and, after resolution, the Director - an agreement on the use of the image. And also reimburse the museum small overhead (associated with the diversion of staff, once - with a stretch on a stretcher and shaking off the dust, etc.) and to guarantee the transfer of the museum by a certain number of ready-made albums.