RH inscr on plate t. c. "PLAN OF THE BATTLE OF CULLODEN 16 APRIL 1746"; inscr on plate b. l. "Sold in May's Building Covent Garden, According to Act of Parliamt. 1746"; inscr in red ink outside plate t. l. "Portef. 2. 1171"; inscr outside plate in pencil b, which is diffcult to read. CRE UNKNOWN; (British; 18th century) This is an example of "anamorphosis". When viewed normally the print shows the battle plan; when held lenthways and looked at horizontally in line with the eye there is an equestrian portrait of the Duke of Cumberland"