Topic: could anyone hazard a date for this bristol green wine please?

[bfg]

ahem! Paul, I was only checking I hadn't got it wrong so that I didn't give them away at a silly price - as per my OP the previous owners and I back dated them to 1930-ish after that their recollection of their family history became vague 

It would have been a nice surprise but heyho

I too have bookmarked  the link and will be comparing a plethora of glasses I have in boxes with on them lol

I like being able to bounce things off like minded peeps. My confidence in my abilities is shot to pieces these days and I do prefer to list as accurately as possible x

[Paul S.]

Hope you do well with them anyway Mel.

[Jeffingtons]

a possible indication of a Georgian/Regency bowl is that small raised cushion (sometimes with a central dimple) found at the bottom of the bowl  -  as opposed to a plain curved profile of later bowls.

Can I also say Paul that the dimple sometimes found at the base of bowls is only found in 3 piece glasses, it being the result of glass being pushed up from under the bowl during attachment of the stem you will not see it in 2 piece glasses, a day out with the Georgian glass makers at Quarley is a real eye opener for learning about the construction of antique glasses

Amazing what you can find buried in the depths of this message board. I've been wondering about the dimples in a couple of glasses I have. Is this something that is specific to Georgian glasses? When did they phase out?

[Paul S.]

think I've learned to be a lot more cautious in the intervening years regarding the dating of drinking glasses in 'Bristol' colours - and probably other glasses too.
It takes a few years of collecting, and disappointments, to appreciate the extent to which these green, blue and amethyst glasses were reproduced in the late C19 and the early years of the C20  -  v.g. copies some of them are too.
See attached picture showing some amethyst glasses in C18 and Regency shapes, though I doubt that any of these were made before c. 1900, and most probably more recent than that  -  some of these have a bump in the bowl.      The exception here is the clear-stemmed example  -  very typical, IMHO, of a rather common shape from c. 1860 (without the collar they are apparently dated a bit later, so I'm told).

The 'bump' in the bottom of the bowl, the reason for which Peter (oldglassman) provided the correct answer some way back in this thread, certainly continued will into the C20, and seems to occur, deliberately, on some of the 'Bristol' coloured wine glasses made in quite recent times.
Obviously, machine made glasses avoid this hall mark, but I suspect it's found on many three piece glasses of quality from the C20, though as Peter mentioned, it won't be found on drawn stems.                 Wouldn't suggest this feature is used for accurate dating though  -  far too unreliable.