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Need help to identify this lock mechanism

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AnythingObsc…'s loves475 of 7697What is this iron hand tool?THE MASTER KEY COMPANY
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    Posted 3 months ago

    Goodhubby2
    (1 item)

    Hello. Please help me identify this object. I believe it has something to do with joining two chains together, maybe for a prisoner chain gang. The Securitas inscription may be an old company name in France, because I found that the letters P. V. & F. and Brevete SGDG signify some type of French patent pending status for products. Other than that, I have not been able to find a photo of another object just like this or similar on the internet. What is it? Is it rare? Would it be highly collectible? Thanks!

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    Comments

    1. dav2no1 dav2no1, 3 months ago
      Awww I saw a clue!

      Breveté SGDG was a French type of patent that ceased to exist in 1968. The name was a common abbreviation for "Breveté Sans Garantie Du Gouvernement“ (patent without government guarantees).
    2. dav2no1 dav2no1, 3 months ago
      Securitas is the market leader in security services in France, with approximately 20,000 employees.
    3. dav2no1 dav2no1, 3 months ago
      Not sure if this is related or not...

      The term 'PV' in French stands for 'Procès Verbal', which, in relation to Road Traffic Regulations, may be loosely translated by “fine” or “ticket”.
    4. blunderbuss2 blunderbuss2, 3 months ago
      Securing a bike ?
    5. AnythingObscure AnythingObscure, 3 months ago
      How big is it?
    6. dav2no1 dav2no1, 3 months ago
      I'm still leaning towards waist buckle that locks the waist chain and leg shackles?
    7. Goodhubby2, 3 months ago
      Thanks for all of your replies. Very helpful! Please note the size is 4.25" x 3.25" at the widest points when closed.
    8. Goodhubby2, 2 months ago
      I like the waist buckle idea. I'm just still surprised that it is such a mystery and that there are no other examples online. Maybe it is a prototype that was issued a temporary patent but never went to market.
    9. Congcu, 2 months ago
      Chain gang locks are well know are very robust. The device shown would not be capable of adequately securing the chains. See: https://www.bidnow.us/lots/39301
    10. Onedtent, 2 months ago
      I'm guessing it may be for locking mail bags or similar.

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