Topic: Turquoise dimpled stem glass, clear stem and handmade? foot

[Paul S.]

Manganese was used as a decolouriser, (maybe I need to visit Specsavers) - but under uv I've always seen it as a greenish grey sort of colour, and I know that some people have even confused it with a weak uranium response because it leans far enough towards the green.  I now recall that we have discussed previously that it's cadmium that gives a yellowish response under uv.       Manganese does, of course, go back a long way as a decolouriser - certainly through the C19.
Most of my comments were related to mid to late C19 period glasses with this common round funnel shapped bowl - the sort we see commonly with the green and red coloured bowls  -  they're to be found at almost any flea market or antiques fair, and I'd always understood them to be for either sherry or port.      However, bowl size can vary substantially, and I would accept that the larger ones may well be for wine  -  I've just looked at my own examples and some are twice th size of others.

My thoughts on turquoise were simply that I know what the semi-precious stone looks like so had that in mind when thinking of a definition.

I've looked through some of the books, but unable to find any drinking glasses with this sort of dimpled look, so either very uncommon or do you think these are more likely to be Continental rather than British?      I've also checked in Silber & Fleming, although don't see anything with similar patterning.
I'm sure you're right, and that these are mould blown in some way  -  I was thinking only of the traditionally made blown plain glass examples that are without any surface moulding, so my comments about not being C19 should be disregarded.

Sorry, but think I've exhausted my rather limited knowedge on these things

[flying free]

Thanks Paul for all your help  and interest  and for looking through your books which is very much appreciated  
I have no knowledge of these things, I couldn't begin to tell you what a 19th century or continental drinking glass looked like.  My interest in this area is strictly limited the few pieces I own and finding out what they are. 
Peter (Oldglassman) did comment on my glasses on another thread so I've quoted it here for reference if that is ok
HI ,
          I have to agree with both Steven and JP on the Y and T marks being the result of shearing , the gadget merely being the tool to hold the glass by foot after shearing ,whether the use of these  died out around 1890 I really have no idea,I can imagine in some places it may well have been used till a later date , just as we see snapped rough pontils on relatively new glasses at times ,indicating that they are hand made but not necessarily old,
 Re Bridgitte's glass ,this to me looks crudely made probably for tavern use , the other i think is much better quality,mould blown in the traditional way ,a 1 piece mould with the bowl then being blown larger after coming out of the mould ,as opposed to the multi part moulds that would create a finished item with seams .

cheers ,
         Peter,
Back to the packing for tomorrow!!!!

I did comment on the part mould line I could see further up the thread, but having looked in daylight there are 3 faint vertical lines on the cup or bowl part of each glass. So perhaps this isn't a 1 piece mould?
more pics uploaded - to show them a bit more clearly

[Paul S.]

unfortunately, replies to this particular question have become split  -  I see that Peter has replied specifically on your glasses, but via your other post which was on the back of Brigitte's glass here ....   http://www.glassmessages.com/index.php/topic,47368.msg266522.html#msg266522
 
We're in danger of getting confused  -  don't know whether the mods can extract your bits from Brigitte's and move to here.

Anyway, you can read Peter's comments and he seems quite happy that it is a traditionally mould blown example, although he doesn't give a date, but thinks they are of some quality.            I must look out for similar examples  -  my glasses of this ilk are all with plain bowls.