Bernard,
Thank you for your kind comments about the catalogue that Jeanette Hayhurst and I produced for the exhibition of cut glass that we undertook in 2003. I also note your comments regarding corrections and would be very interested to liaise about your thoughts and notes as I am always happy to learn

As for your comments about the design being by Pierce and not Kny since the pattern number is late 1930’s, that is a difficult one.
There is a typed page in the Broadfield House Glass Museum archive which references the Redhouse Museum Catalogue and “Cut Fancies”. Pattern number 27207 is listed as being C1936 (27185 being 1935 – no ‘circa’) and pattern number 28008 is 1937, again, no ‘circa’.
We therefore have a problem with the dating of the Fish vase with great accuracy, but it does indicate that it is possible either designer might be credited with the vase. However, since Pierce took over the role of chief designer in 1937 I would suggest that Kny is the more likely of the two. It all depends on when in 1937 the 28008 pattern number was used.
The other vase you refer to (cat no 39), using the same blank, uses outline cutting similar to item 14 in the catalogue. Under that reference Jeanette notes that outlined cutting first appeared in Job Book no. 1236, for late 1934. This has always been referred to as a Ludwig Kny trait and certainly that deeply swirling cut with outline cutting (also on the front cover) conforms to that attribution. Note that the technique was also used by John Luxton on occasion.
There is another design, using a version of the blank, illustrated in “20th Century Factory Glass”, by L Jackson, on page 201. The caption says attributed to Ludwig Kny, but I also have one of these vases which is acid marked with Stuart, as well as “Designed L Kny”. Note the outlined mitre cutting around the design below the rim.
It is probable that all these large vases were made to order, or in the Jackson versions case, are from an exhibition, such as Harrods “Modern Art for the Table” or “Art in Industry”, held at the Royal Academy. Alternatively, the fish vase might have been used as a window piece at somewhere like Harrods (certainly this was done later with Isle of Wight glass and the two large Jazz pattern vases by Timothy Harris).
Finally, I am not currently aware of a factory given name for the fish vase, nor am I aware that Kny produced his own cutting or engraving. Current knowledge says the he was only a designer and did not execute his own work.
Nigel