Hi All, I grabbed this cheaply as it had been around twice on ebay and nobody seemed interested in it. I think it is opalescent rather than Alabaster.
It seems too big (30cm [12"]) and weighs 1.1kg or 2lb 7ozs to be an ashtray bowl. The centre is too small for a normal bowl. It came with another piece that I did not buy, that's a common AS piece.
Interested if anyone has seen this form and if it is indeed AS.