In my youth, while touring Ireland (up & down) with plays, at the end of the sound effects tape (reel to reel) we had about a yard of stop-foil followed by a foot each or red, white & blue leader followed by "God Save The Queen" followed by another yard of stop-foil, then a foot each of green, white & yellow leader followed by "The Soldiers Song". It helped to remember which side of the border you were on! (apart from that it made no difference - but that was in the early '60s, after the last and before the current troubles)
C.H.