You will need to contact the owner's representative to arrange access.
In the case of this object this can be done by:
Writing to Lady Dillon, Apartment 16, 8 Dog Kennel Hill, London
Reporting A Data Error:
Reporting An Access Error to the HMRC:
Mounted letter from Charles II to his daughter Charlotte Fitzroy
Maker:  Maker Unknown
Mounted letter from Charles II to his daughter Charlotte Fitzroy, 1682.
THIS ARTWORK IS LOCATED IN:London
This item is available for viewing by appointment through the contact shown