Hi Brit Plumber, I remembered this thread.... if useful, I caught sight of the 'Irish' Mk3s at War and Peace, and one was dated 1957 on the side, in conjunction with the UE57 serial. I had to chuckle, been looking for a MK3 for ages, finally bought one in January this year (needing a bit of work, which is slowing being done...) and then lots of decent examples hit the market.. Sod's law, but enjoying the little project.