thanks for the correction David - what you might call a comment based on a pre-conceived idea
thanks Fred - coming back to the Stratford patterns in the McConnell book ......... apparently the page depicted is from Stuart's 1938 - 39 catalogue, so that doesn't really help us to know when this salt was Registered - which would probably have been some long time prior to that date, imho. You'd imagine that a salt for the table would have been a much more likely requirement then, than now, and so an item deemed a basic necessity.
Between February 1921 and August 1922, for example, this factory Registered something like 22 difference designs - although it's not possible off-hand to say if these were all variations on the Stratford Rings, but a fair bet so say many were. I'll try and find this one when I visit Kew, either later this week or early next, unless we locate in in the meantime. I'm surprised we do have this one - rarity value again I guess.