This is an original fold-out bus timetable leaflet (A5 format: size approx 8" x 6" folded, opening out to 8" x 18") produced by Lothian Region Transport for their Edinburgh circular service 42 serving Portobello; dated 7/77.
It's in very good pre-owned condition with minimal signs of handling, almost as new (please check both scans); it's unmarked and undamaged and will be posted in a card-backed envelope for added protection.