BAKE off star Prue Leith will help to launch a steam engine which has been lovingly re-created by enthusiasts.

The TV presenter and chef will be at Didcot Railway Centre tomorrow to unveil a Saint class locomotive - one of the most important designs of the early 20th century.

These models were introduced by the Great Western Railway from 1902 and served for half a century before being scrapped by 1953.

Now, the Great Western Society (GWS) has rebuilt a Saint at Didcot, using a later version of the class rescued from a scrapyard.

Ms Leith, who lives in the Cotswolds, was a member of British Rail’s hotel company board, appointed by British Railways Board (BRB) chairman, Peter Parker, in the mid 1970s.

She will launch the locomotive, which is called Lady of Legend, at 11.15am.

Celebrations will continue over the weekend with family attractions including an Edwardian trail and many visitors adopting Edwardian dress.

Former bake off contestant Christine Wallace will be demonstrating Edwardian cookery.

Tickets at didcotrailwaycentre.org.uk