Fiona Bruce and the team return to Dulwich Picture Gallery in South London to uncover more intriguing heirlooms, including an early illustration by madcap artist Heath Robinson.
There is also a mysterious set of rare and valuable miniatures found on a bus, and a book returned after a 50-year loan turns out to be worth a small fortune.
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Ready to Watch Antiques Roadshow, Season 31, Episode 23?