Hello,
Well found Kieth - both the piece and the sleuthing to find it's Webb Corbett

However, its not Art Nouveau and really not rock crystal in the true sense of glass using that term, nor is it psuedo cameo - a term more usually reserved for Thomas Webb pieces.
It is part of a series of wares (maybe four pieces) showing fruit on the bough with, in this case, the applied amber yellow actually being the fruit - plums hanging below the engraved leaves. For some reason these are the vases that appear most, yet as far as I'm concerned are the best of the group. Another from the series can be seen in BGBtheW's if you have a copy. I think it's a black and white image within the enamel section. Given that you will realise immediately that it is c1930. All the pieces have coloured lobes at the base of the vase imitating fruit.
Hope that helps a bit, Nigel
