art pottery vase - presumably british - possibly Awaji ware, Japan

hi all,
bought this wonderful pot at a carboot for a bargain 50p and wondered if anyone can help me ID. I think it's probably 1900-1915 ish British art pottery but i don't know if the mark underneath means anything - looks to be in pencil. I'm hoping it's Burmantofts as the turquoise colour looks ok, but i think they tended to glaze underneath too? is that correct? other suggestions anyone?

measures only about 6 inches high

That's rather nice, a bargain for 50p.

However, although I'm not an expert of Burmantofts, I'm pretty sure the shape isn't right for them. I would expect it to have mouldings or ridges or something given a plain glaze.

found this burmantofts similar shaped vase from a google search but it has their characteristic "sun" type pattern. don't know whether they did more plain things

actually, looking at them both now, mine seems slightly more squat. other factories i wonderedabout where ault, linthorpe or even pilkingtons. but as you can tell i don't really know enought about them.