You will need to contact the owner's representative to arrange access.
In the case of this object this can be done by:
Reporting A Data Error:
Reporting An Access Error to the HMRC:
THIS ARTWORK IS LOCATED IN:Yorkshire And The Humber
This item can be seen at Fairfax House, Castlegate, York, YO1 9RN. Details of opening times can be found at the attached link.