Maurice. BIG BIG THANK YOU
it could be Mario Peloso work.
I'll try to investigate it a little more to confirm that if possible. or maybe someone (friends or family of Mario) would have some sort of record of his work. Maybe there is a chance to find out who was the first owner of this frame. (and how this frame end up in Cork in Ireland).

Hopefully we are now on a correct path to know the history of this frame...