Hello Donny
Yes it is frequently used by compilers, as noted in the IVR (International Vehicle Registrations), but sometimes they use ES, as Italy may be I or IT.
Have noted you are answering lots of cryptic questions, you are doing well. Enigmatic Variations in the Sunday Telegraph next for you or even the Listener!
DocHH,
As with most "crossworders" I have an inquiring mind and got interested in cryptics through doing crosswords with two sets of clues, easy and cryptic. Gradually found myself doing less and less easy and more and more cryptic. Thanks to the good folk of AB who answer my frequent questions I seem to improve.
Good morning Danny, You are one of my main sources of answers so thanks for the patience. In contrast to a lot of discussions in the other topics on AB it is still possible to have polite "conversation" in Crosswords.