
not sure now having seen the base.
Nothing the same nor anything I can see with ridges in my catalogue pages either (I don't have very many of them though). Sorry.
I don't know whether the one I linked to is or is not S& W but also it's difficult to tell but it seems to perhaps have a pontil mark on it where yours doesn't.
I think I am remembering a ridged S&W vase though,in a darker green, more squat than your vase.
I'll try and see if I can find it.
m