Neil,
Sorry, I was at cross-purposes. I was thinking 'bash-plate'. I had a look at the '27 EW options brochure, and it only mentions leg shields, both leather and steel patterns. But I did see a mention in a catalog description of a 350EW fitted with steel leg shields and a 'new pattern under shield'. It does not turn up in the spares lists, but then neither do the leg shields so must be considered an omission. Still no idea what it looked like.
-Doug