it's worth adding - whether in defense of 'Art Deco to Post Modernism' or not - that an errata slip was issued, correcting the original error of 'Waterford' - this reads................. Page 37, caption,181:"Deep Water" vase is by WATFORD CRYSTAL, not Waterford.
It's publishing procedure, usually, that these slips are included with original sales of a book, so would assume each booklet included an errata slip when sold.
Of course, in this instance this might not have happened, and slips may have been included only with later copies of the booklet.
This error was corrected at the same time as several others, and just thought I'd mention this as appears Nigel hasn't drawn attention to the the erratum slip putting the matter right.
I'm probably biased, with my interest in C20 cut glass, but am of the opinion that this is a worthwhile and very useful booklet, since the subject is covered only in limited form in the major offerings, such as Miller's for example.........................although there still remains a need for an accurate guide (with date lines) of backstamps for most of these factories, and this was perhaps a missed opportunity by these authors.
Of course what we really need is a substantial volume on British cut glass of the C20.............