From own observation, plus RAF official website for translation of the squadron motto.
Obverse script
Latin
Obverse lettering
ELIZABETH II BAILIWICK OF GUERNSEY
2013
IRB
Reverse description
Colourised badge of 202 Squadron in centre, showing flying Mallard duck with squadron motto, `SEMPER VIGILANTE` (Be always vigilant), on golden banner.
Reverse script
Latin
Reverse lettering
ROYAL AIR FORCE SQUADRONS
SQUADRON
202 202
ROYAL AIR FORCE
SEMPER VIGILANTE
FIFTY PENCE
