Author Topic: Barovier Avventurina Faux Tortoiseshell Swirl Bowl?  (Read 1241 times)

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Offline Jpthings

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Barovier Avventurina Faux Tortoiseshell Swirl Bowl?
« on: October 08, 2005, 07:27:11 PM »
HI All,

Well I think I will try another piece since I didn't have any response to my Murano Birds over a week ago. I am hoping someone will know something about this. Other then being beautiful, I do not know much about Art Glass. This bowl is 3" tall and 7" in diameter at the widest point and has a ground and polished bottom. Searching through the internet, I have found 3/4 of them people attributed this shape bowl to Barovier, though I have my doubts because his work seems to be more intricate. The Gold and silver speckles I see described as Avventurina. They also date this to the 1950's and the wear on the bottom does indicate age.The Tortoiseshell swirl was my description as the coloring reminds me as Tortoiseshell. And and all help is greatly appreciated as I do not want to misrepresent an item.

Thanks
Bear :-)


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Offline Ivo

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Barovier Avventurina Faux Tortoiseshell Swirl Bowl?
« Reply #1 on: October 08, 2005, 07:37:41 PM »
That is a fun dish - whoever made it.  The silver is silver foil, the gold is gold foil and as far as I can see there is no aventurine glass in the piece.
Ivo
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Offline Max

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Barovier Avventurina Faux Tortoiseshell Swirl Bowl?
« Reply #2 on: October 08, 2005, 08:27:53 PM »
Hello Ivo   :D

Forgive me for asking stupid questions that I should know the answer to , but when you say gold foil, do you mean gold leaf?  And how is aventurine different?  Your book says 'copper shavings' is that what aventurine always is?

Hmm...hope this made sense!
I am not a man


Offline Ivo

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Barovier Avventurina Faux Tortoiseshell Swirl Bowl?
« Reply #3 on: October 09, 2005, 07:51:56 AM »
aventurine is a type of glass cooked with copper shavings and left to cool in the pot. It comes out of the oven as a single lump and is cut to blocks for further processing.
In order to use it in a larger piece it needs to be picked up on the marver as shards, but it cannot be worked too extensively after that because subsequent reheating will burn the copper flecks. Aventurine can only be worked at relatively low temperatures - so onlly at surface, never inside a thickwalled piece.
It is also used as threads in reticello glass - which is a relatively low temperature production. I think Barovier managed to make small glasses out of solid aventurine glass.

Gold leaf/ gold foil (same thing) and silver can be used in thickwalled pieces because they do not burn.
Ivo
► BLUE HENRY ◄
 New Book: The Almost Forgotten Story of the Blue Glass Sputum Flask

all texts and pictures (c) Ivo Haanstra.


Offline svazzo

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Barovier Avventurina Faux Tortoiseshell Swirl Bowl?
« Reply #4 on: October 10, 2005, 10:45:57 AM »
Hello Bear,
This type of bowl is can be found with a "Venetian Glass" label. Very common, and more than likely a smaller glass house, not Barovier & Toso.
Hope this helps you.
Javier
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Offline Max

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Barovier Avventurina Faux Tortoiseshell Swirl Bowl?
« Reply #5 on: October 11, 2005, 06:04:21 PM »
Quote from: "Ivo"
aventurine is a type of glass cooked with copper shavings and left to cool in the pot. It comes out of the oven as a single lump and is cut to blocks for further processing.
In order to use it in a larger piece it needs to be picked up on the marver as shards, but it cannot be worked too extensively after that because subsequent reheating will burn the copper flecks. Aventurine can only be worked at relatively low temperatures - so onlly at surface, never inside a thickwalled piece.
It is also used as threads in reticello glass - which is a relatively low temperature production. I think Barovier managed to make small glasses out of solid aventurine glass.

Gold leaf/ gold foil (same thing) and silver can be used in thickwalled pieces because they do not burn.


 :D  Thank you Ivo, I missed this posting somehow.  Hopefully your explanation will stick in my head now!   :roll:
I am not a man


 

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