The only known surviving sketchbook by engraver and naturalist Thomas Bewick has been returned to his native North East.
The volume was discovered by English dealers who bought if for a collector at a fair in San Francisco in 2013.
The 230-year-old book had not been in seen in public for almost 100 years.
It is on display at the Newcastle Literary and Philosophical Society ahead of it being given to its new owner, Bewick collector David Bolam.
Bewick was a long-standing member of the society from 1799 and the Bewick swan was named after him.
He was best known for his A History of British Birds and his pioneering engraving techniques.