Feeling slightly qualified to answer this one,the best coverage is The Railways of West Cork ,Reflections and Reminiscences,its privately published so no isbn or even an authors name.Mine came from the County Donegal people at Donegal Town station.The Bluebell Railway markets a large range of Irish photos with some very good T&C ones in there even better there are thumbnails of the pictures so you can see before you buy. go onto the Bluebell website then their museum link then photo collections the John Smith one is the one to check up on.Andy.