Thanks to all those who helped in my quest re photos.
And now one more request for help.
I have a signalling diagram for the original box when it was situated at the Athlone end of the down platform, IRRS Journal 163 Mayo Line Modernisation.
However, the box was destroyed in 1922 and subsequently rebuilt at the Westport end of the down platform. There were track and signalling alterations in 1937. so does anyone have, or know the whereabouts of, a signalling diagram for the second box, please?
Stephen