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  1. #11
    Senior Member Bottle Master Harry Pristis's Avatar
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    Black Glass

    Here's one I found in a river:
    Click image for larger version. 

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  2. #12
    Senior Member Bottle Master Harry Pristis's Avatar
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    Black Glass

    Here's a pair of blacking bottles, circa 1840s:

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  3. #13
    Junior Member New Bottler
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    Hey there! I collect sea glass, and especially treasure the black glass I find. Can you tell me anything about the patina on this shard I found a couple of days ago? Benicia?
    https://www.facebook.com/kelly.merre...4026112384575/

  4. #14
    Senior Member Bottle Master Harry Pristis's Avatar
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    Sorry, Kelly, there just not enough of the bottle left to say much about it. I do note that it is thick-walled. That may indicate that it was used for a carbonated beverage like champagne. A champagne bottle -- the earlier ones, at least -- often will have some curve vertically. Here are some earlier champagne bottles:

    Click image for larger version. 

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ID:	182855 Click image for larger version. 

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ID:	182856 Click image for larger version. 

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    Last edited by Harry Pristis; 05-03-2018 at 08:36 PM.

  5. #15
    Junior Member New Bottler
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    Thanks for getting back to me That actually confirms my guess, since I've held my fair share of champagne bottles, and the shape hasn't changed much over the centuries. What I'm really curious about is the powdery iridescent film, as I have seen that sort of residue in images of old black bottles. I've had someone in another thread describe a chemical process that sounds like what I've read about Benicia iridescence, but I don't understand the opaque/iridescent film. Is it byproduct of the corrosion? Should it be removed, and if it is removed will the iridescence remain?



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