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  1. #1
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    Messy mold seams

    The more I try to research this bottle, the more confused I get. Im such a novice! Are crooked mold seams common? These appear to be across the diagonal of the bottle and disappear near the bottom third. Plus I cant tell if thats a C or a G after the P in the makers mark. Is anyone familiar with this mark? Trying to get an idea of the age & manufacturer.
    Attached Thumbnails Attached Thumbnails FFB70625-DDE6-43E6-8F8F-12BE64AD3AF7.jpg   86EA275F-B75E-4EBC-8EA3-0CC6427C9916.jpg   4115F208-1414-49F0-B7A2-67B3DE684DBC.jpg   12095968-60ED-4163-A2E3-BA26545521B2.jpg  

  2. #2
    Senior Member Bottle Master Screwtop's Avatar
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    That's messed up.
    In all my perplexity's and distresses, the Bible has never failed to give me light and strength.
    - Robert E. Lee

  3. #3
    Senior Member Bottle Master
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    No that definitely isn't common, I've never seen a bottle with a mold seam as weird as that. Not sure what would cause it.

  4. #4
    Senior Member Bottle Finder
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    I'm wondering if the mold they used wasn't cracked when they made the bottle? Everything else about it looks normal.

  5. #5
    Senior Member Bottle Master sandchip's Avatar
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    You'll see it pretty regularly in early ABM bottles. It's a result of the fact that they are blown into two molds, the first being upside down, undersized and in the shape of a long truncated cone (also why you sometimes see an irregular circle or oval line on the base), in order to give the parison some degree of uniformity, sort of a preform mold. The parison is then removed from that mold, being held by the top (resulting in that seam below the lip) flipped over and inserted into the full-size mold where final blowing is completed. That crooked mold line is from the first mold, as a result of there having been some degree of rotation in moving from the first to the second mold. Hope this makes sense and helps.

  6. #6
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    Thank you Sandchip, that makes sense! Meanwhile, I was finally able to see a very faint “I” in front of the “P” in the maker’s mark. The next letter I decided is a “G” rather than a “C”. That makes this an Illinois-Pacific Glass Company Bottle. 1902-1926. Does the characteristic you mentioned help narrow the dating down any closer than this?

  7. #7
    Senior Member Bottle Master hemihampton's Avatar
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    It does possibly look like a ABM bottle like sandchip mentioned, that would put it in the time frame you just mentioned. LEON.

  8. #8
    Senior Member Bottle Master sandchip's Avatar
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    It's an early ABM piece. If I had to guess, I'd say around 1910.

  9. #9
    Senior Member Bottle Finder
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    Quote Originally Posted by sandchip View Post
    You'll see it pretty regularly in early ABM bottles. It's a result of the fact that they are blown into two molds, the first being upside down, undersized and in the shape of a long truncated cone (also why you sometimes see an irregular circle or oval line on the base), in order to give the parison some degree of uniformity, sort of a preform mold. The parison is then removed from that mold, being held by the top (resulting in that seam below the lip) flipped over and inserted into the full-size mold where final blowing is completed. That crooked mold line is from the first mold, as a result of there having been some degree of rotation in moving from the first to the second mold. Hope this makes sense and helps.
    I just wanted to compliment you on that answer--very insightful!

  10. #10
    Senior Member Bottle Master sandchip's Avatar
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    Quote Originally Posted by willong View Post
    I just wanted to compliment you on that answer--very insightful!
    Thank you.



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