With all due respect,
I have a view...
the glass makers are probably right, the glass commentators may have missed a variant, and those that set their faith in the absolute certainty, of the rectitude of the commentator's knowledge, will have the parameters of what they, and their idols, thought, challenged...more often than is comfortable..... So,
same as it ever was....
Only fiscally motivated buyers/sellers have something to fear, amateurs know the true value of what they buy.....
Sorry Patrick, it is probably not what you wanted to hear. Anne, nice find, (take a bow) and Emmi, we can move the rules all day, hand gathers, and different gaffers, bad hang-overs and find all the excuses we want, these folks were real people, not machines, what the hell makes collectors so bothery arrogant, that they want every piece delivered within the parameters of a latter-day, anally-retentive, automaton? If you want exact piece by piece accuracy, buy Pavel Hlava designed automatic production glass, Sherdley, but Whitefriars????... please, get real.
Marcus