This went live on 9th Feb, which is where the list comes from -
https://www.thegazette.co.uk/notice/2965802(a) a depiction of the Angel of the North and the letter A; or
(b) a view down a gun barrel with the James Bond logo and the letter B; or
(c) a cricketer striking a ball and the letter C; or
(d) a depiction of a double-decker bus and the letter D; or
(e) a depiction of an English breakfast and the letter E; or
(f) a depiction of fish and chips and the letter F; or
(g) a globe with a marked line to indicate the Greenwich Meridian and the letter G; or
(h) the badge of the Houses of Parliament and the letter H; or
(i) an ice cream cone and the letter I; or
(j) a depiction of the Gold State Coach and the letter J; or
(k) a depiction of King Arthur and the knights of the round table with the letter K; or
(l) a depiction of the Loch Ness Monster and the letter L; or
(m) a Mackintosh and the letter M; or
(n) a stethoscope and the letter N to denote the National Health Service; or
(o) a sprig of oak with an acorn and the letter O; or
(p) a postbox on a street and the letter P; or
(q) a depiction of people queuing through the letter Q; or
(r) a robin and the letter R; or
(s) a view of Stonehenge and the letter S; or
(t) a steaming tea pot and the letter T; or
(u) part of a Union Flag and the letter U; or
(v) a depiction of a village street and the letter V; or
(w) a spider’s web and the letter W; or
(x) a ship off the shore of a coast and the letter X; or
(y) a Yeoman Warder and a key with the letter Y; or
(z) a zebra crossing and the letter Z.