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SOME MYSTERY CABOCHONS

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Costume Jewelry2234 of 3279My First CoroAntique Pin - locket
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Posted 3 years ago

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vetraio50
(545 items)

These cabochons look to be from the same company. They are glazed all over. There is no impressed mark. As Ivan has said this would indicate more inexpensive production methods. They all bear evidence of stilt marks. This indicates that each one was individually placed in the kiln.
I've been researching the Prosser Patent for the solidifying of powdered clay that dates back to 1840. It was bought by Minton Hollis (and others I presume) to produce buttons and of course tiles in the mid-1840's. This same method was used by Ruskin. It seems that later developments of the Prosser Patent method allowed up to 500 buttons to be made in the one batch. If anyone has more information about the Prosser process I'd be interested to hear from you.

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Comments

  1. vetraio50 vetraio50, 3 years ago
    Hi Sean. Just finished doing the vacuuming!

    her in Australia it's ANZAC DAY!

    A public holiday remembering the fallen of the wars from both Australia and New Zealand!
  2. vetraio50 vetraio50, 3 years ago
    Many thanks BELLIN68 & inky too!
  3. vetraio50 vetraio50, 3 years ago
    Many thanks again ozmarty!
  4. vetraio50 vetraio50, 3 years ago
    Many thanks Budek!
  5. vetraio50 vetraio50, 1 year ago
    Many thanks MANIKIN!
  6. vetraio50 vetraio50, 3 months ago
    Many thanks again AGHCOLLECT!!!!!

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