Trafford Heritage Society Heritage Open Day in Sale. Don’t miss the opportunity to enjoy a day of heritage in Sale this weekend ! On Sunday (9th Sept), Sale Town Hall will be open from 11am to 4pm, in celebration of national Heritage Open Day. The organisers are Sale Civic Society, the registrars, Waterside Arts Centre, Local Studies, local councilors, and Cofely. The history of many local government facilities and services will be illustrated in a number of events and displays. There will be a children’s trail quiz, and refreshments will be available in the Gallery Bar and the Lauriston Gallery.