I thought it was a bucket vase
. I though Keith was our TW expert
If you look in Reynolds book - page 48 bottom line left hand picture pl. 38 - there's a yellow (uranium??) vase which has a similar quilted type pattern. I also didn't know Walsh did this sort of thing, and indeed it may not be really similar to Keith's vase - unfortunately the picture quality in Reynolds is poor.
I did wonder if Keith's might have been Richardson, but think the amethyst/purple colour isn't deep enough for them.
Does the colour of Keith's piece match any of the colours in the T.W. thread we started some years back?