n 28 August 1961, a well-known set of three stamps was issued to commemorate the centenary of the Post Office Savings Bank (POSB) (), a service for savers that first became available on 16 September 1861. This was one of a number of services that became the responsibility of the GPO, despite having no particular connection with the mails – but which could take advantage of the network of Post Offices across the kingdom, which once provided an outpost of Government in even small villages. Although the 1961 set marks the only appearance of the POSB on postage stamps, over the years it generated a wide variety of ephemera, markings, and
