This is a York Corporation Tramways & Motors duty board. It is for Saturdays with the car leaving the depot at 7:45 am and returning just after mid-night at 12:10 am. The question is how old is it? A clue is that the manager's name has been changed from J A Bromley to R S Asher.
I intend to leave it in the Library next Tuesday and hope that one day it will be on display in a small exhibits section.