Pete,
Yep, I'd go for Ernest Gordon - signature probably reads "Ernest Gordon GS 1042 Afors". [The 1### numbers are GS, and tend to either be engraved lines or cut glass].
I've not seen this one before, but typical of his stuff, a lot of his bits weren't done in big runs - nice piece, good find.
Gareth
As always, if you ever decide to sell please let me know.