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 D.j.r. Robinson at Forsters Llp, 31 Hill Street, London
Reporting A Data Error:
Reporting An Access Error to the HMRC:
Intaglio Collection - no.89 Cupid on tiptoe
Maker:  Maker Unknown
Description: 
Intaglio Collection - no.89 Cupid on tiptoe, with bow and arrow, a butterfly (Psyche) at his feet, sard.
ID:  16972
THIS ARTWORK IS LOCATED IN:
LincolnshireThis item is available for viewing by appointment through the contact shown