I think Walsh Walsh's fruiting vine has polished leaves so that wouldn't be their engraving as far as I know.
I don't think the construction looks the same as the one you linked to by the way.
The merese and stem shape are different.
What size are they please? Width across rim, height and width across foot?
The construction of the stem and the shape does look like the Stevens and Williams sherberts that I own though. But not your description of the pontil mark.
However I have a yellow one which was apparently Cairngorm according to the book, and the colour is different, more yellow, although that could be because it's Cairngorm cased over alabaster according to the book, and not 'self-coloured' i.e. in the pot.However it fits with what Christine says about the colour being different. I don't think it's uranium glass either but just off to check. Christine is the S&W Cairngorm always uranium do you know? I'm just bearing in mind other possible incorrect information in the book.
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