hello Graham - there are of course many shapes of Stuart Woodchester with spiralling fronds, but if you mean that your searches have not found any other salt or pepper shakers where the engraving curls, that may just possibly be due to the taller size of your pieces, which provide a larger surface area for the engraving.
In Miller's '20th Century Glass' (McConnell) there is a pair of small squat p. & s. cruets, and the ferns are indeed straight, since the size of those cruets probably limits the space for tall slender curling fronds. I've not seen the shape of your cruets previously - they're very attractive, and possibly quite early in the life of this design.
Not that it's very likely, but there's always the possibility of confusing a rather small example of Woodchester with Irene Stevens 'wheat-ear' design, which she created for Webb Corbett some time in the 1950s, and which I think are always shown as being straight - so a lot later than Kny's Woodchester.
P.S. meant to say assume this can now be moved to British.
Topic: Stuart salt and pepper shaker (Read 1273 times)
