After 1953, new post boxes were placed in Scotland carrying only the Crown of Scotland image rather than the 'EIIR' cypher, which continued to be used in the rest of the United Kingdom, and indeed in some of the Queen's other realms and territories.
From 1953 onwards, new post boxes in Scotland displayed solely the Crown of Scotland emblem while the 'EIIR' cipher continued to be employed across the rest of the United Kingdom and certain other realms and territories governed by the queen.