Glass Message Board
Glass Identification - Post here for all ID requests => Glass => Topic started by: NevB on August 20, 2021, 11:02:59 AM
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I got this yesterday and after a search I think it may be Walsh. It is made in three pieces, is 16cm. tall and 11cm. across the top and does glow under UV, although not particularly strongly, but it may be masked by the green colourant and I do think it's uranium. In Reynolds book P.121 Fig. 299 there is one similar, I think with the number A8248 although the stem and shape are slightly different. Walsh did make glasses with the baluster stem and the blade knop below the bowl but I don't know if the colour is right. It has a smoothed pontil and quite a lot of wear but only on a very narrow contact area.
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nice looking piece and a good size too. I've not the remotest idea whether it might or might not be from Walsh, but IMHO the bowl shape is more akin to an ovoid (rather than a goblet) - a shape seen on some English rummers from the first third of the C19 - have a look in Tim Mills book - I'm not suggesting this is that age, but just that the bowl shape goes back to c. 1795 - 1840. Not sure about the comment that the green colourant might be masking the u. glow - I'd always understood it to be that it was the green itself that did the glowing ;D You're correct of course about quality glasses being made in three parts.
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Thanks Paul, I do think it may have a good age to it. It has some nice horizontal striations on the bowl and foot from manufacture and a few bubbles. There are some seeds of very dark green colourant and with the overall dark colour I was thinking that it doesn't just contain uranium oxide, but that's speculation.
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With the double curve I'll call the shape an ogee.
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...and does glow under UV, although not particularly strongly, but it may be masked by the green colourant and I do think it's uranium.
Has your Geiger counter been much use in determining uranium content when the glow isn’t what you might expect?
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How is the rim finished? Does it have a lead crystal ring? The quality doesn't look what I'd expect from Walsh Walsh. The darker greens do tend to inhibit the uranium glow a bit
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I did wonder about ogee when I was typing - I think on reflection I'd suggest Nev is correct with his thoughts. :)
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Ekimp, it does register above background levels but nothing spectacular, I think the glow is too intense for manganese. Christine, the rim is fire polished and has no shear marks. It rings beautifully but doesn't seem heavy enough to be lead crystal. P.393 of Hajdamach shows an early 20thC. amethyst glass copy of an earlier style and says the ogee shape is suspicious.
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So does that indicate not uranium then? I’ve been wondering how you’ve been getting on with the Geiger counter and if you’ve found anything to confirm what Barrie Skelcher says about not all uranium glass having a strong uv glow. Do you take it to the charity shops?...I don’t like getting my loupe out ;D
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The Geiger counter reading is high enough to show it's uranium. The uranium glass pieces I have vary considerably in the amount of glow they give off, from a dull green to an intense glow. I don't use the Geiger counter in shops as it clicks quite loudly, the looks I sometimes get when using a UV torch are bad enough ;D.
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that glow appears to confirm u., but why isn't the foot glowing? the reaction looks to decrease above the glow area, presumably due to the lack of uranium because of thinness of the glass in that portion. I agree, the glow appears far too bright for manganese.
Walking into the charity shop with the counter must be quite a spectacle - suppose you could say that the clicking was death watch beetle.
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Ha, very funny, Nev...I can imagine...perhaps you need headphones? One of the worst things is when you go into your pockets or bag to get the device out...incase they think you’re pocketing something! I’m not so bothered in an Antiques centre but tend to have my loupe in my hand. Interesting about the varying intensity of glow, maybe confirms what Skeltcher states.
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Yes Paul I think it's just down to the thickness of the glass, the bowl is very thin. My Geiger counter is actually smaller than a mobile phone and I've found I can turn the click off but I don't think I'll use it in shops.
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have to say I've never owned or used a counter - always imagined they were large box-like things with strap that went round the neck. I think you should use it in the shops - so many people I meet in charity shops are keen to know why I use a torch, why I look at the bottoms of glass, it makes for an interesting life. How dull to be ordinary, to let life pass without taking an interest and having an inquisitive mind - that often you can share with others.
The issue with drinking glasses is that perhaps more than most other designs, copies abound since most of the historic shapes are appealing and are reproduced ad infinitum - when most of my glass went, it was my drinking glasses that I kept.
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Sounds like Paul has a good philosophy, you could go in with your face shield, mask and gloves ;D There is always pressure to comply, especially these days it seems. I must say, I’m not keen when I see people looking things up on their phones, that’s cheating!
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I agree with Paul about using the torch in charity shops, I've had endless conversations with both the folks running the shops and other customers about why I'm using a torch on stuff and they are always fascinated when something lights up with the uranium glow. It does make for an interesting life!