| RefNo | IM/005902 | 
| Level | Item | 
| Title | Hay, John, 2nd Marquis of Tweddale | 
| Artist | Unknown | 
| Date | nd | 
| Description | Head and shoulders, right profile, in fur trimmed gown. Oval frame.  No other details | 
| ObjectName | Engraving | 
| Materials | Black adn white engraving | 
| Dimensions | 250 x 200 mm | 
| AccessStatus | Open | 
| Copyright | The Royal Society |