Lady Mary Crawley’s wedding dress and the Granthams’ family car, a 1925 Sunbeam Saloon, are among the lots

Fans will be able to buy a dress worn by Maggie Smith, a signed script and other memorabilia from the period drama.

Lady Mary Crawley’s wedding dress and the Granthams’ family car, a 1925 Sunbeam Saloon, are among the lots