Great stuff. My dad has a copy of that which he let me borrow when I was in Ireland over the summer. The whistle codes on entering a station are interesting. As is the 1946 timetable, which features a tiny bit more steam passenger action than the 1957 one which most of us are familiar with. Apparently, so my dad says, the advent of Railcar B effectively did away with the remaining steam passenger diagram bar the legendary 19:20 mixed ex Enniskillen. The Saturday only Manorhamilton to Sligo return was a surprise to me too - that also failed to make the 57 timetable.