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[Colonial Numismatics] new york uncut sheet 1776 waterworks

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  • From njraywms@optonline.net Wed Dec 18 13:07:46 2002
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    Date: Wed, 18 Dec 2002 16:08:36 -0500
    Subject: Re: [Colonial Numismatics] new york uncut sheet 1776 waterworks
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    From: Ray Williams <njraywms@optonline.net>
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    If no one know on this group, you might try contacting Susan Maltby through
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    Ray W


    ----- Original Message -----
    From: <lanthanidecluster@yahoo.com>
    To: <colonial-coins@yahoogroups.com>
    Sent: Wednesday, December 18, 2002 2:30 PM
    Subject: [Colonial Numismatics] new york uncut sheet 1776 waterworks


    > Hi,
    >
    > A few years ago I purchased an uncut pane of four NYC waterworks
    > notes. A recent XRay analysis indicates a trace presence of barium
    > (Ba) throughout the sheet. This may be bothersome, as Ba wasn't
    > isolated until 1808, and the absence of similar metals from the piece
    > suggests that the Ba 'contaminated' the sheet well after it was
    > supposedly printed. I was wondering if anyone can tell me what
    > chemicals might be used by a dealer to make old paper look better, or
    > if there are any particularly common acid free (and Ba containing)
    > mountings that might help explain the presence of Ba in this sheet.
    >
    > Thanks. Happy Holidays.
    >
    >
    > To unsubscribe from this group, send an email to:
    > colonial-coins-unsubscribe@egroups.com
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    >
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    >

URL de origen Fecha de publicación
  • 2002-12-18
Volumen
  • 1

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Autor NNP