So the million dollar questions have to be:
1) Was Mr F. H. Thomson still commissioning double walled glass items to be made, so that he could silver it and have it cut with patterns and then apply a plug with his name and Patent impressed on the plug, after he and Varnish parted company (apparently May 1851), and after Mr Mellish left the company and then was shortly later sent to prison?
(there is some indication in the wording of one of the court cases that he was because Mr Thomson talks about himself (Mr Thomson) doing the designing for the patterns of the cut glass. And he talked at the beginning of the case about the fact that he himself did the silvering before Mellish joined.
2) Was Mr Varnish still commissioning glass to be made after he and Mr F. H. Thomson parted company in apparently May 1851? and if so, how was he getting it cut and silvered if Mr Thomson did the silvering and used his (Mr Thomson's) company workers to do the cutting and he himself (Mr Thomson) designed the patterns
3) If they both (Thomson and also Varnish) were still commissioning double walled glass after they parted company, was Powell and Sons still making silvered double walled glass for Mr F. H. Thomson and separately for Mr Varnish after they parted company in apparently May 1851?
Or was it being made by other companies?
Varnish was at pains to state during the court cases that the making of glass, the silvering process, the cutting etc was absolutely nothing to do with him and that he did not have any idea about glass or the processes involved. He was at pains to point out that he was the 'commercial' arm of the company involved in meeting merchants etc.
Basically I am wondering if pieces with Varnish's Patent plug stopped being made after May 1851?
I also wonder if pieces with Mr F. H. Thomson plugs continued to be made after May 1851, since he seems to have been the one with the money, the cutting works, the workers to do so and the ability to apply the silver nitrate himself.?
Note:-
The Corning had an exhibition in 2007 called the Curiosities of Glassmaking.
They produced a pdf checklist of the items in the exhibition.
Click here to viewOn page 18 Under the title 'Silvered Glass and Dichroic Glass' they list 1 item for Thomson and 3 for Varnish, stating they were all made c. 1850-1860 and all made by James Powell & Sons (Whitefriars) Ltd:
Quote:
'Footed Tumbler
England, London, James Powell & Sons (Whitefriars) Ltd. for Hale
Thomson,
about 1850–1860
Mold-blown glass, silvered, engraved
66.2.9, gift of Mr. Jerome Strauss
Silvered glass was commonly made with solutions of silver nitrate combined with some form of glucose. The silvering liquid was poured into the space between the walls of the glass vessel through a hole in the bottom, and it adhered to the glass.
Cased Goblet
England, London, James Powell & Sons (Whitefriars) Ltd. for E. Varnish
and Company, about 1850–1860
Blown and cased glass, silvered, cut
79.2.169, bequest of Jerome Strauss
In this goblet, the outer layer of blue glass has been cut away to reveal the silvered glass beneath.
Pair of Cased Vases
England, London, James Powell & Sons (Whitefriars) Ltd. for E. Varnish
and Company, about 1850–1860
Blown and cased glass, silvered, cut
2006.2.6, gift of Freeman T. Freeman
Cased Vase
England, London, James Powell & Sons (Whitefriars) Ltd. for E. Varnish
and Company, about 1850–1860
Blown and cased glass, silvered
60.2.43'