Wrest Park in Bedfordshire is the setting for today’s roadshow, where treasures include a piece of Murano glass inspired by Picasso and a collection of 1950s advertising posters for Vauxhall cars. As usual, the day produces and eclectic mix of objects. Expert Ronnie Archer-Morgan challenges the audience to guess the origins of three pieces of ornate tribal jewellery, while the vicar turns up with a handsome silver flagon presented to the local church in 1684. And militaria specialist Mark Smith can’t believe his eyes when one visitor brings along a set of original blueprints for the bouncing bomb depicted in the film The Dam Busters.