Hi Derek
I don't think the mark on the base points to that date range necessarily. The piece may well have come via Canada - where there seems to have been a long running requirement to mark all imported Whitefriars pieces (see earlier comments in this thread). Some of the canes in my weight match ones found in a couple of Whitefriars EIIR 1953 weights - though the canes could have hung around on the shelf for some time, I accept.
Alan