For additional interest:
The design of the flower itself follows on from similar items made by Salvador Ysart in the Ysart Brothers years and was very likely a more solid version of his upright "frit-flower" weights believed to be genuinely pre-war items.
But as with many such things, upright flowers of that type were also made in the 19th century in Europe. So Jack Allan's Flower-In-The-Rain weights was a more modern, and very attractive, version of an old style. And even mroe modern versions were continued in Scotland by, at least, Willie Manson in his own studio.