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 Mrs P A Sykes at Hunters, 9 New Square, Lincolns Inn, London, Wc2a 3qn
Reporting A Data Error:
Reporting An Access Error to the HMRC:
Portrait of a Lady called Elizabeth
Maker:  Cornelius Johnson
Cornelius Johnson: Portrait of a Lady called Elizabeth, wife of Thomas Shuckburgh. Half length wearing black with a white ruff. Oil on canvas, in a painted oval, in a carved wood frame, 27ins, by 21 3/4ins.
THIS ARTWORK IS LOCATED IN:Northamptonshire