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December 16, 2017, 08:31:55 pm
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Couple of nice White Jade Bottles !

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Author Topic: Couple of nice White Jade Bottles !  (Read 263 times)
George
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« Reply #20 on: November 14, 2016, 06:05:03 pm »



    What is the source of your statement re.drilling and bottles being 18th C.?

From Matthew Isganaitis.. I trust him very much..

He also shared that "with machine carving it's very difficult to execute the strong edges of the foot and neck. Slow carving is the only way to achieve sharp consistent edges like this generally". I took that to mean old school pedal type rotary tools.

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Joey
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« Reply #21 on: November 15, 2016, 01:29:51 am »

Mr. Isganaitis would not be my first pick as a jade expert. Or tenth, or 50th, for that matter.

       Steven Little at LACMA in LA, Robyn Turner in LA (until recently in NYC), Clare Chu also in LA, Ka Bo Tsang in Toronto, Paul Moss in London UK, Mrs. Hartman in NYC, Carol Michaelson at the BM in London UK, Therese Tse Bartholomew in SFO; I could go on, with a bit more sleep (I landed 12 hrs. ago, and just returned from a few hrs. at the National Palace Museum).
Wayne Morioka in Honolulu, also comes to mind.
     And I would not rely on that as a 'proof' of 18th C. Manufacture, were I you.
But feel free.
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Joey





    What is the source of your statement re.drilling and bottles being 18th C.?

From Matthew Isganaitis.. I trust him very much..

He also shared that "with machine carving it's very difficult to execute the strong edges of the foot and neck. Slow carving is the only way to achieve sharp consistent edges like this generally". I took that to mean old school pedal type rotary tools.


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Joey Silver, collecting snuff bottles since Feb.1970

Wattana
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« Reply #22 on: November 15, 2016, 01:45:26 am »

Would someone mind explaining who Matthew Isganaitis is? I have never heard of him.

Tom
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Tom
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George
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« Reply #23 on: November 15, 2016, 02:11:13 am »

Would someone mind explaining who Matthew Isganaitis is? I have never heard of him.

Tom

Here is a Facebook page for him Tom.. I trust his knowledge completely..
https://www.facebook.com/groups/319030194928738/
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« Reply #24 on: November 15, 2016, 02:16:06 am »


     And I would not rely on that as a 'proof' of 18th C. Manufacture, were I you.
But feel free.
Best,
Joey




That is why I said "it can help to date"..
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« Reply #25 on: November 15, 2016, 03:42:44 am »


Here is a Facebook page for him Tom.. I trust his knowledge completely..


OK, thanks George.

I have seen the marks left on recessed bases by core drilling as noted by you in this thread. Not only on white jade bottles, but also on agate and quartz bottles. In my experience, top quality bottles never show any kind of tool marks on any part of the bottle - outside or inside. I agree with Joey that it is a sign of sloppiness. That does not remove the possibility of it being 18th century - just that some corners were cut in finishing the bottle.

Tom
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Joey
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« Reply #26 on: November 15, 2016, 06:34:05 am »

But from it possibly being 18th C., the sloppy finishing notwithstanding, to that being proof it IS 18th C., is a BIG jump.
Best,
Joey




Here is a Facebook page for him Tom.. I trust his knowledge completely..


OK, thanks George.

I have seen the marks left on recessed bases by core drilling as noted by you in this thread. Not only on white jade bottles, but also on agate and quartz bottles. In my experience, top quality bottles never show any kind of tool marks on any part of the bottle - outside or inside. I agree with Joey that it is a sign of sloppiness. That does not remove the possibility of it being 18th century - just that some corners were cut in finishing the bottle.

Tom
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Joey Silver, collecting snuff bottles since Feb.1970

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