The pattern is called "Ripple". It is fairly old, or "early Allister", if you like.

I first found the man himself in 2005, at the Cambridge Glass Fair, but previously, I had bought a small Ripple candleholder on ebay. It was listed as IoWSG, which I knew it wasn't but I was curious.
When I did get chatting to Allister, it was to buy the Platinum vase he had on his stand, but he had some Ripple bits there.
So, I had finally identified my votive, and Allister was jumping up and down a little, telling everybody within earshot that he had; "Finally arrived. My work has sold on ebay!"