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Author Topic: Antique Sulphide over Latticino Basket Date & ID help?  (Read 1791 times)

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Offline LesBeatiques

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Antique Sulphide over Latticino Basket Date & ID help?
« on: June 14, 2013, 03:07:17 PM »
I'm hoping that someone can help me out on this; I can't find anything similar.
Roughly 2-1/8" diameter, the sulphide appears to be pale pink and sits over a double latticino basket.

Thank you!

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Offline LesBeatiques

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Re: Antique Sulphide over Latticino Basket Date & ID help?
« Reply #1 on: June 18, 2013, 11:18:13 PM »
Under closer examination it appears rather that the glass is pale pink - likely due to prolonged exposure to sunlight?
The weight is roughly 2" in diameter and 1-5/8" tall.

Thanks again for all your help!

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Offline LesBeatiques

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Re: Antique Sulphide over Latticino Basket Date & ID help?
« Reply #2 on: June 22, 2013, 08:41:10 PM »
This weight is now available here:
http://www.ebay.com/itm/281125677956?ssPageName=STRK:MESELX:IT&_trksid=p3984.m1555.l2649

I'd still be delighted to gain more information as to the maker.

Thanks,
Eric

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Offline tropdevin

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Re: Antique Sulphide over Latticino Basket Date & ID help?
« Reply #3 on: June 22, 2013, 09:21:43 PM »
***

Hi.  That sort of basket usually indicates Germany / Thuringia, 1880 to 1920. The slightly pink/purple coloured glass is typical of that area too (excess manganese, used as a decolourant, that precipitates out over time and exposure to UV in sunlight).

Alan
Alan  (The Paperweight People  http://www.pwts.co.uk)

"There are two rules for ultimate success in life. Number 1: Never tell everything you know."

The comments in this posting reflect the opinion of the author, Alan Thornton, and not that of the owners, administrators or moderators of this board. Comments are copyright Alan Thornton.

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Offline Lustrousstone

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Re: Antique Sulphide over Latticino Basket Date & ID help?
« Reply #4 on: June 23, 2013, 11:12:43 AM »
Quote
excess manganese that precipitates out over time and exposure to UV in sunlight

To be more exact, the UV causes a chemical reaction that results in a change in the oxidation state of the managnese and an accompanying colour change. It does not precipitate out and it will oxidise however low or high its level but the higher the level the greater the colour change. The major factor is the level of UV exposure

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Offline tropdevin

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Re: Antique Sulphide over Latticino Basket Date & ID help?
« Reply #5 on: June 23, 2013, 11:42:24 AM »
***

Thanks Christine.  I think the original explanation I read (a good few years ago in a book concerned more with pottery glazes) must have confused the purple of manganese in old glass with dispersed copper and similar colourants.

Alan
Alan  (The Paperweight People  http://www.pwts.co.uk)

"There are two rules for ultimate success in life. Number 1: Never tell everything you know."

The comments in this posting reflect the opinion of the author, Alan Thornton, and not that of the owners, administrators or moderators of this board. Comments are copyright Alan Thornton.

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Offline LesBeatiques

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Re: Antique Sulphide over Latticino Basket Date & ID help?
« Reply #6 on: June 23, 2013, 03:05:15 PM »
Thank you both for the invaluable information!  I knew that the color change had to do with the additives and in the glass UV exposure but never new the exact detail.

Much appreciated,
Eric

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