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British & Irish Glass / Re: some of my newest additions to my family of Monart
« Last post by KevinH on Yesterday at 05:04:05 PM »
A "green glow" under longwave uv light in Monart glass (pre- and post-war) and also in Ysart Brothers glass (1946-1955) is normally due to the manganese. It can usually only be seen in the clear glass.

In my experience (mostly with paperweights) the shade of the "green glow" can vary from a "yellow green" to a "not so bright regular green". Some of the "earlier" millefiori canes with a substantial amount of clear glass (such as when used as the central core) can show up as a seemingly "very bright yellow green" which some folk claim is an indicator of uranium. Whether that is the case or not well beyond my knowledge.
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Glass / Re: Clear rummers with rich cut pattern - Theresienthal?
« Last post by flying free on Yesterday at 04:07:23 PM »
there is also Josephinenhütte to consider (and possibly others maybe Lobmeyr, Meyr's Neffe, Moser? but couldn't find anything so far on those) - I'm just going by my gut instinct (which is often found to be wrong :)  )
however, both Josephinenhutte and Theresienthal just don't seem to have the similarities that Rheinische Glashutten does for some reason.
Here are a few to compare:
http://www.pressglas-korrespondenz.de/aktuelles/pdf/pk-2012-3w-buse-theresienthal-heckert.pdf
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We were talking about the stuff that glows but not as much as uranium, the manganese.

Yes, Roberta, it's the manganese that turns purple in sun-purpled glass.
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Glass / Re: Clear rummers with rich cut pattern - Theresienthal?
« Last post by dirk. on Yesterday at 03:43:51 PM »
Thanks everyone for your information, opinion and last, but not least compliments - really appreciated.
As for the photographs I could make a short explanation in another forum of this board if you like.

Personally I think the Ehrenfeld hint looks most promising for now. I´m sure the shape based on a
traditional rummer shape would be german, austrian or bohemian rather than french or belgian, but I´m
always open to be corrected. Especially the trumpet-shaped stem seems to point towards that direction
IMO.
Datewise the slim and elegant dimensions of the stem are Art nouveau or later I think. As I said before I
can´t exclude a revival style. Hence I was suggesting Theresienthal, because they produced in older styles
over a long period.
However - if old indeed... Personally I find the one in the last link from flying free very close - but the one
on the very right even more than the other one, because the dimensions of the stem are so very close.
I´ll try to find more online.
Many thanks!
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Glass / Re: Clear rummers with rich cut pattern - Theresienthal?
« Last post by flying free on Yesterday at 01:30:07 PM »
this design is dated 1890.
I think yours is a variation on this.
http://www.ebay.de/itm/10-Adolf-Roemer-Weinroemer-Rheinische-Glashuetten-A-G-Koeln-Ehrenfeld-um-1890-/121678655146?nma=true&si=NZ7aZdJvwq2aJpGkMoixAuyy33s%253D&orig_cvip=true&rt=nc&_trksid=p2047675.l2557


That is the one shown second from right on the catalogue page here
There is another cut (?) one shown far right on the catalogue page.
I think it's possible yours is a variation on that shape.  But I can't find any later catalogues or pattern books.

http://www.bv-4.de/index.html?/historie_industrie_glas.html
m
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I think you mean uranium for glowing under UV
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Thanks sue,
I kept thinking of Manganese, but thought it couldn't be, as wasn't that what Paul Ysart used too much of in his early paperweights which gave them a purple tint ?
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Glass / Re: Clear rummers with rich cut pattern - Theresienthal?
« Last post by Paul S. on Yesterday at 12:45:10 PM »
Dirk - quite justifiably you have been complemented on your superb photographic efforts  -  would you care to share your secrets with us ;)  -  do you use a light tent for example, or perhaps some other method to diffuse the light. :)
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British & Irish Glass / Re: Quite a puzzler !
« Last post by keith on Yesterday at 12:35:23 PM »
Have heard back from Gwyneth and she doesn't remember ever seeing a paperweight like this so I'm presuming it is late 80s into the 90s, best I can do  ::) ;D
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Glass / Re: Please Help id glass plate
« Last post by Ivo on Yesterday at 11:59:37 AM »
Welcome to the Glass Message Board.

I have never seen this specific design before, but assuming it is cast glass you might want to look at Humppila, designer Kaija Aarikka.
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