After Lima had some success with their N Gauge models in the late 60's early 70' they decided to enter the British OO market
However their scale was HO and they produced HO models from about '73
They did not look correct when compared to similar British outline models and they decided to manufacture in OO
This was completed by '77 so as can be seen there was a small 4 year window when these models were produced.
The Irish company Toys International and in particular its General manager John Byrne was approached by the Wrenn brothers with a view to becoming the Irish agent for Lima and in '74 they met at the Nuremburg Toy Fair. John Byrne brought up the subject of Irish liveries as there was now for the first time an Irish agent.
Christmas '74 saw the introduction of the HO Supertrain set, the real one had just been launched by CIE the previous year.
So historically this is the first Irish outline set that was available to buy RTR
Incidentally John Byrne later moved to Hornby and was also responsible for the Hymek sets.
A very collectable set for any serious Irish collector.