I thought that finding a factory at least wasn't beyond my abilities - obviously it was........... would have put money on this being Czechoslovakian, but having trawled much on both of Pamela's illustrated catalogues etc., all I have is a headache. Tall and chunky - possibly a high ish failure rate when pressing due to the gaps near the base, but could be very wrong on that - 9.25 inches tall (235 mm) in height. No marks and no bird bath base, so perhaps that should be telling me it's not Czech., and unusual, I thought, to find a pair.
There are any number of vases and some other small pieces that have some degree of deco styling in the way of fins or similar, so a common sort of design feature in the 1930 - 40 period, which is probably where these originated, and imo almost certainly from the Continent.
All suggestions gratefully received, and thanks for looking.