This is an original British Railways (London Midland Region) 3rd class Special Cheap Day return Edmondson card ticket from Bakewell to Chapel-en-le-Frith (Central), dated 16DE57 - both stations and the line closed in 1967; British Transport Commission number 6 conditions printed on the reverse.
It's in good pre-owned condition with minor signs of handling and very slight corner/edge wear (please enlarge and check both scans); it's unmarked & undamaged and will be posted in a card-backed envelope for added protection.