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Fiona Bruce and the team visit Ham House in the London borough of Richmond-upon-Thames.

Could an exquisitely decorated 18th-century Chinese robe that was once kept in a dressing-up box have come from the court of the emperor? Asian Art specialist Lee Young thinks it might be the most important Chinese treasure ever found on the show – potentially worth a six-figure sum.

The team are excited to see a portrait by Indian-born artist FN Souza and a collection of silver from the Gulf state of Oman, while glass specialist Andy McConnell can’t believe two goblets engraved with images of the Crystal Palace were picked up for just £25.

Siobhan Tyrrell admires a dressing gown made by from a blanket by a German prisoner of war, while Mark Smith is moved by a sobering photo album that documents the moment British atomic bombs were tested in 1956, compiled by a British soldier who was an eyewitness to the event.

Ceramics specialist Serhat Ahmet challenges Fiona to spot the fake amongst a group of items made by the Sevres porcelain factory.