Adding Stevens and Williams to the above list of peacock eye and trail makers - pattern numbers 30633, 30634, 30635 -
And some observations:
1) that one of the mushroom posy vases in my ad, the one I mentioned with the flat rim, looks remarkably similar to a 'Harrach' posy vase, Truitts page 67.
2) that a vase in Truitts page 67 (no 4) whilst not being identical, looks to me as if it is exactly the same maker as a vase in Charles Hajdamach's 20th Century British Glass page 37 plate 68, tall footed vase at the back. I know it's difficult to tell from pictures, but either it's the same maker or someone copied someone on that vase.
edited to add: On the Style and Design webpage the tall one shown in Truitts is here listed as Stuart and with a rider on the items featured, stating there are errors in the books -
link here scroll down and there are a group of vases on the left - http://www.stylendesign.co.uk/guidepages/estoz1.html
3) The picture in CH 20th Century British Glass shows 6 vases all of which bar one, appear to have a dot in the centre of the eye. The one on the left does not... and the eye and trails and especially the way the bottom trails have been applied look very similar to the vase on the very left of the Harrach group in Truitt's page 67 (vase 1)
4) There are apparently differences in colour between the Harrach plate and the 20th Century BG plate with the Harrach version looking dark bottle green and the Stuart versions looking paler and more olivey - do we know if this is a print production issue or were they really different greens?
Sorry , I'm at home feeling ill and sorry for myself so I've got time to pontificate