http://www.20thcenturyforum.com/t3493-whitefriars-glass-pre-1960sthis must have been what I was thinking of
it's a Whitefriars Barnaby Powell blue threaded on sea green bowl, ribbed, and with a dark blue rim fading to sea green at the bottom.
If yours is a Whitefriars then you will need someone else to help as I know nothing

(I hope you do and I hope it's very rare

If not, then terribly sorry as I couldn't find anything under Gray-Stan and couldn't find an S&W 'Rainbow' shape to match unfortunately (although I'm sure I've seen a footed version). Gray--Stan did do a threaded pull up as well but I've not seen that colour and couldn't find a match for the shape and design.
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