3rd portrait of Queen Elizabeth II crowned facing right. Lettering around outside.

Mint mark: PM (Pobjoy Mint).

Engraver: Raphael David Maklouf.

Wreath containing two motorcyclists - Number 9 is leading Number 4 and turning right. Value numerals at bottom, dieletters just above.

AA, AB, AC, AD, BC are dieletters. These letters used are all uppercase and they take their distinctive style from Hiberno-Norse runes. They always appear on the reverse of the coins. Dieletters tell what die to stamp the coin was used. When AA gets worn or broken it is replaced by AB and so on. So AA is most common, AB is scarcer, etc.