Here is the other piece that was a recent charity shop purchase, and again without any marks - I've sent pix of this to Pamela too. Not a particularly strong glow, and not something I recall from the past. Maximum rim diameter is c. 33 cms. Quite possibly I'm missing one or even more parts - perhaps originally there might have been a frog and possibly even a base plinth. Not much more to say, but if you recognize the pattern do please shout, and thanks for looking.