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 Robert Holden at Robert Holden Ltd, 13 Old Burlington Street, London, W1s 3aj
Reporting A Data Error:
Reporting An Access Error to the HMRC:
Portrait of John Penn
Maker:  Richard Brompton
Description: 
Richard Brompton: Portrait of John Penn, Governor of Pennsylvania and grandson of William Penn - signed, inscribed and dated 1773, 29 1/2in. by 24 1/2in.
ID:  5987
THIS ARTWORK IS LOCATED IN:
LondonThis item is available for viewing by appointment through the contact shown