Sunday 12th June 1921 was the day that the postmen in Britain stopped delivering their mail on a Sunday. The Saturday Hull Daily Mail of the time spelled out the situation for their readers:
‘The changes notified by the Postmaster General as to the postage rates and the Sunday collections and deliveries come into force at mid-night on Sunday. Subject to the payment of a special fee of one shilling, plus the ordinary postage and express fee, any letter or posted packet other than a parcel, will be accepted up to time of the general night mail posting on Saturday, at selected offices mentioned below, for special dispatch to any of the towns mentioned, but not elsewhere, and will be delivered by express messenger during the hours that office of destination is open for telegraph business. By the payment of a special fee of one shilling plus postage a letter will be accepted on Sunday for the offices mentioned for express despatch to any of the towns indicated for the first house-to-house delivery after its arrival on Monday.
The selected offices are, outside London, the head offices at Edinburgh, Dublin, Belfast, Birmingham, Bristol, Cardiff, Glasgow, Leeds, Liverpool, Manchester, Newcastle-on-Tyne and Sheffield.’
Hull was disappointed and surprised that it was not one of the selected offices.