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Solved mystery items2628 of 11803Bontgen & Sabin Butterfly KnifeWhat is this item?
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    Posted 7 years ago

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    CheckerWoman
    (1 item)

    My husband found this out behind his grandfathers house many years ago. I cannot find anything telling me what it might be. Does anyone have any ideas?

    Mystery Solved
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    Elegant small bearded hatchet / axe combined with curved adze blade by mapsyst
    Elegant small bearded hatchet / ax...
    $87
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    Comments

    1. lizzycbw lizzycbw, 7 years ago
      I thought someone would have chipped in by now .... I'm so curious too!
    2. Goldenwing, 7 years ago
      Looks like a Jack hammer bit
    3. OlofZ OlofZ, 7 years ago
      It's an anchor for holding the tendons when prestressing concrete. It's made of aluminum to withstand the corrosion.
    4. OlofZ OlofZ, 7 years ago
      Not an expert so I really don't know the details how it works. Frank Holister Co. "16" probably stands for its 16 claws.
    5. CheckerWoman, 7 years ago
      Can you show me where you found that info? Please?
    6. OlofZ OlofZ, 7 years ago
      Here's a patent drawing: http://patentimages.storage.googleapis.com/pages/USD207870.png
    7. OlofZ OlofZ, 7 years ago
      Cool find, I hope you can find out more details how it's used. Looks quite sinister! :)
    8. CheckerWoman, 7 years ago
      Outstanding! Thank you so very much!

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