unfortunately, I don't own any Lemington cylinder vases with which to make comparisons. If you read Hajdamach, it appears that the Lemington cylinders - in steel, amethyst and gold - were produced in three sizes of 10", 9" and 8" - the tallest being identical to the largest K.L. size. The fact that my amethyst is 9.3/4" could be either that it was a Lemington piece intended to have been a 10" one, and the blower had an off day - or, as Lemington didn't make this size then it has to be a K.L. production. Either way, don't think I can say anymore - other than, looking carefully at the pix of Lemington cylinders in Hajdamach, it looks almost that the rims were ground/polished, as opposed to K.L. cylinders which I believe are all fire polished. Again, it could be my eyes, but the Lemington examples - in the book - seem to show only mould blown bases, not ground pontils as I think all the K.L. ones show. Need someone to comment please, who has a few of the earlier Lemington examples.