I've just bought a clear one of these items . It hasn't arrived yet but I'll post pics when it does.
It looks to be the same maker as Jinxi's posted here (reply 20 on thread):
http://www.glassmessages.com/index.php/topic,36683.msg201514.html#msg201514'Here is a link to a set of photos on Flick'r
http://www.flickr.com/photos/55140067@N07/sets/72157625115737873/
Veronica'
I mentioned on the first linked thread below that I thought Veronica's bowl/pear shaped pot might be English. Boulton and Mills patented a rim in this lattice/trellis work and Thomas Webb patented a bowl in this as well. The threading and colours on Veronica's reminded me of those threaded preserve dishes and also reminded me of Stevens and Williams colours, whilst the rim of the solid threaded bit reminds me a little of the squarish in and out shape rim patented, I thought, by Stevens and Williams iirc? Does anyone else think they do?
I need to go and check sources and will add info. I'll add pics of my pear shaped pot when it arrives.
Gulliver's Victorian Decorative Glass British Designs 1840-1915 (N.B. despite title not all pieces in the book are British):
page 25 Stuart and Son
- a clear glass bowl with threading (turned over rim and applied shells to edge of rim)
- an amber threaded fan shaped bowl with an in and out crimped rim, elongated waves rather than just pinches for the crimps
page 37
- a clear trellis lattice rim as per these pots no 18, no maker designated
page 118
top left a vase machine threaded c.1890
'... The very pale ruby glass body is formed from a quilted diamond pattern mold, and decorated all over with citrine color glass machine threading....' no designated maker (need to find a thread from Bernard where he thought one of his pieces might have been Stevens and Williams Moresque but I think it turned out to be Stuart and Sons)
edited to add
page 199 tazza bottom right blown into a diamond quilted mold in pale ruby glass with amber glass machine threading - my notes say
'ref Bernard, Stuart 3890, 1882 - info on GMB 19/11/12'Trellis work references from Gulliver's:
Page 275
Boulton and Mills open top trellis rim (i.e. zig zag at the top) registered design number 118864 Feb 2nd 1889
Boulton and Mills trellis rose bowl shaped with trellis flared foot design number 122096 march 26 1889
Boulton and Mills also registered a bowl with threading 249451 Feb 14 1895 so they did use threading.
Links to other threads with a traforato type pieces here:
http://www.glassmessages.com/index.php/topic,54884.msg311028.html#msg311028and
http://www.glassmessages.com/index.php/topic,36683.msg199874.html#msg199874m