See my previous replies and to add:
Going to be really controversial here

The feet have remarkable similarities with a foot described as on an item made by Stuart and Sons Limited (Gulliver, Victorian Decorative Glass pp 65 - see foot on blue bowl.)
See also the feet on page 174 all Stuart. They look like your foot.
There is a foot reg design by Webb that is similar :
Thomas Webb registered design 21264 October 19 1867 shows a similar design for the feet. (source Gulliver, Victorian Decorative Glass, pp 270)
but that looks more detailed and 'refined/reeded' than your foot.
Hodgetts Richardson and Son RD 238052 also show a similar foot, but the curl is more open, the reeding is finer and more of the 'reeds'.
There is another Stuart foot on page 64, but again not the same as the one on 65 which to my eye really does look remarkably like your foot.
mmm, so, did Stuart ever do anything with an encased foil?
I've found Bernard's Tazza marked in my Gulliver's book as pattern no 3890 ref Bernard. I presume that bowl you were querying item 81 is also Stuart.
Ok last but not least see pp 169 where a crimped rim bowl with shell reeded applied straight feet and with lizards on each end is shown in what looks like a similar decor to yours but is most similar to this one:
http://fieldingsauctioneers.co.uk/lot/120824-Thomas Webb & Sons Limited. The pontil mark is covered with a prunt impressed with a Registered Design Diamond mark, incorporating the date code for November 11, 1882.
I am finding it hard to believe these items id'd as Stevens and Williams 'Rockingham' are actually by Stevens and Williams, and hard to believe that 'Rockingham' could be used as a descriptor of a decor at all, but I could be wrong.
Indeed this vase
http://fieldingsauctioneers.co.uk/lot/120778uses remarkably similar colouring and decor to the Webb bowl with lizards in the Gulliver book pp 169. The lizards on the bowl are amber applied glass like the handles on the vase. The decor I think is the same, it's just been 'brightened' up in the Fieldings pictures. But the problem my brain is having computing this is that the Fieldings vase look so 'crude' in terms of design, chunky/heavy, not well balanced somehow. Whereas the bowl in the book is stunning on all fronts.
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