St Edward's Crown was initially used on kiosks in all parts of the United Kingdom. However, in Scotland, following protests over the use of English insignia, the Post Office (like other government agencies there) began to use, from 1955, a representation of the actual Crown of Scotland. To accommodate the two different designs of crown on K6 kiosks, the fascia sections were henceforth cast with a slot in them, into which a plate bearing the appropriate crown was inserted before the roof section was fitted.