Gents, I've already done a few searches on RMWeb and also Uncle Google but drawn a blank with both.
I have a vague memory that someone makes, or used to make, overlays for proprietary loco models to assist in re-gauging them to EM or P4 but can't remember who.
Can any kind RMWeb-er assist an old and tired modeller with a fading memory?.
(Thirty-one working days to retirement)
Tim T