Antiques expert Eric Knowles is to appear at the Treeby & Bolton gallery in Keswick to mark the launch of an exclusive piece of Moorcroft pottery inspired by a local Lake District landmark.

The veteran of BBC television's Antiques Roadshow will be joined by Nicola Slaney, who designed the new Ashness Bridge vase which features the remote beauty spot overlooking Derwentwater.

Both will meet customers at the gallery's high-profile design debut on May 7 from noon to 3pm.

Nicola will talk about how she came up with the eye-catching design for the five-inch vase, while Eric is to give a lecture on arts and craft in the Lake District and about the new item.

Moorcroft, with its distinctive tube-lining, is highly collectable and the numbered edition Ashness Bridge vases are only available at the gallery in Lake Road.

Besides the bridge over Barrow Beck, the £395 vases feature bright yellow daffodils amid clusters of ancient trees.

The expert guests will make them even more of a collector's item by signing them for anyone who buys one on the day.

Libbie Barton, gallery manager, said: "We are very excited about our Moorcroft event.

"It is a thrill in itself to have the designer of our own unique Moorcroft vase here and now for it to be confirmed this week that Eric Knowles will be joining Nicola really is something very special, not just for Moorcroft collectors but for all ceramics and antiques enthusiasts."

Eric, 63, is a ceramics specialist and ambassador for Moorcroft who has been part of the furniture on the Antiques Roadshow since 1981.

The Lancastrian joined Bonhams Auctioneers in London as a porter just five years earlier.

He is now one of Britain's best-loved antiques experts, currently presenting Put Your Money Where Your Mouth Is and fellow BBC TV show Antiques Master.

Nicola has been a designer for Moorcroft since 1997 and she is often influenced by Blackwell, the arts and crafts house in the Lake District.

The vases are all individually numbered and also feature the Treeby & Bolton backstamp on a Moorcroft piece for the first time.

Space at the event will be limited and people are advised to contact Treeby & Bolton on 017687 72443 or at info@treebybolton.co.uk to book a place.