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 Gareth Hughes Collections Manager, Cavendish House, Welbeck, Worksop, Nottinghamshire, S80 3ll
Emailing :
Reporting A Data Error:
Reporting An Access Error to the HMRC:
Netscher
Maker:  Netscher, Caspar, 1639-1684
Description: 
Netscher, Caspar 1639-1684: Portrait of a Lady, called Louise-Francoise de la Baume le Blanc, Duchesse de la Valliere 1644-1710, full length, signed, 235cm. x 170.2cm.
ID:  1128
Currently kept at: Welbeck Abbey
THIS ARTWORK IS LOCATED IN:
NottinghamshireThis item is available for viewing by appointment through the contact shown