so why does spinks and davis quote that the vip proof crowns  are frosted yet also a standard proof with no mention of frosting  for the 1937 and 1953 crown ???   the same with the rare frosted proof 53 half crown from the plastic set, , the standard one is easy to get yet no mention frosted proof for the standard proof, still out on this subject, i know there are 2 versions of the 53 half crown, dots to gratia etc,