I have just bought/won a 1933 Great Southern Railway Rule Book. It is little different from my BR one of the 1960"s! But it was issued to Driver J Canty at Rocksavage Cork in 1933 and he seems t have retained it till 1958, amazing!But under all the aeons of dirt on the covers it seems to be a blue green in colour.
I also found a 1935 Tourist and Excursion Fares timetable, fascinating reading and as it states in one add; Pleasure without Restriction! theres a thing!