Hi Sav,
Well I cant help on the actual colours but the paint job looks slightly different to the 1974 image which was the same as EI-ASW. So unless the scheme was different in one side of the airframe she had a subtle change before 1980.
Here she is in 1980 with Irish Helicopters Ltd. Maybe she was only in Ireland for a short period as otherwise I'm sure you would have seen her during your time there.
