Camilla visits the Eden Project to take part in the Antiques Roadshow episode

The Duchess of Cornwall visited the Eden Project to take part in an episode of Antiques Roadshow.

The Cornish attraction’s two enormous ‘biome’ greenhouses hosted the show’s various experts and crowds of locals brought their family heirlooms to be appreciated.

Camilla, who wore a green floral print dress by London designer Fiona Clare, brought along two of her own items to be judged – which will be revealed when the show airs sometime next year.

She took part in the ‘Guess the Mystery Object’ game with jewelery expert Geoffrey Munn and took a walk through the famous gardens of the Eden Project with the show’s presenter Fiona Bruce.

Bruce, who has presented Antiques Roadshow since 2008, the host said the Duchess was a “good sport” who “had a full roadshow experience”.

“I think the Duchess really enjoyed visiting the Roadshow. He was such a good sport and spoke to a lot of our visitors here, the crew and our specialists,” she said.

“He brought a few items and our book specialist and silver specialist told him about them. So I’d say it’s been a complete roadshow experience – this is the last program we’re filming this year and what a great way to end it with such a special guest.”

Camilla later met 16-year-old Dylan Kilpatrick and his mother Amanda Fishlock from Cornwall, who brought a painting by their ancestor, the 19th-century artist Robert Ponsonby Staples, with him in which appear a family in an outing at the seaside.

Ms Fishlock explained that the artist was a relative on her mother’s side, so the painting came into their possession.

When asked what Camilla thought of the painting, Dylan said: “She said she was jealous, she said she really liked the figure in the foreground.”

Camilla also spoke to Sandra Matthews, 77, who brought a prayer book she believes once belonged to the famous 19th-century French actress Sarah de Bernhardt.

Ms Matthews said she bought the book 30 years ago and found the actress’ name written on the flyleaf.

“Camilla was very interested because she knew who Sarah de Bernhardt was,” Ms Matthews said.

Elsewhere, Camilla met former cabinetmaker Christopher Thorp, who had a furniture price book printed by the London Cabinet Makers Union in 1811.

Mr Thorp, who has since retrained as a tropical ecologist working for Plymouth University, said the Duchess asked him about his former job and his interest in the history of the craft.