Paul, heights are not given in the catalogue for caddys. The images I have come from the Winterthur Library Delaware, who will copy up to a maximum of 20 pages for a fee. However they are supposedly putting all their glass catalogues online this year at the "Internet Archive" website. The catalogue is from 1881 but their copy was annotated in 1902 with some designs being crossed out in pen, which I guess means that some were no longer produced. None of the caddys were crossed out so I would say they were still being produced in the early 20th century. Then of course the molds could have been sold on when P&V closed before WW1 - perhaps Molineaux Webb across the other side of the canal might have taken them and kept that model going for another 20 years... one can never know!