Seeing the photo with the other two 9612's I can see how similar it is. I stand by my previous comments, but also would keep an open mind. I suppose there is a possibility it could be a "frigger", but it would not be a FLC Gold one as the colour is certainly "off". LOL! I AM at last learning that sometimes things are not so cut and dried!! :spls2: AND it would be surprising to me, if Whitefriars made this in this Amberish colour, as Amber was out of their colour range for a few years, before the introduction of the Knobbly range.
However, I did purchase a long time ago something like yours Kez, almost same shape and certainly similar colour, which turned out to be Czech, unfortunately I didn't keep the data on it (another lesson learned!)
Perhaps you could bring it to the Cambridge Glass Fair in September for a few other people to take a look - nothing beats a hands on assessment!