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  1. #11
    Join Date
    Jul 2014
    Posts
    266
    Country: Germany

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    Tim, thank you. This is very valuable information. Is it possible to make a connection with my lock?

    The dial, which came with my lock has as the latest patent date 1871. That is the lower boundary. The upper boundary is the production end. Perhaps 1940s? I do not see anything in this lock, which indicates that it is from 1906 or later . The dial matches and it does not contain anything from the 1906 patent. But you wrote that the dial should have the 1906 patent date. So there apparently is something in this lock, which tells you, that it is from 1906 or later. Is this a feeling or can you point out why you think it is from later than 1906?

  2. #12
    Join Date
    Sep 2007
    Location
    Aberdeenshire
    Posts
    697
    Country: Great Britain

    Default

    Quote Originally Posted by Cepasaccus View Post
    Hi,

    PS: What is the purpose of this brass spring? Should it hold the locking bolt to not accidentally fall down?

    The converse perhaps - to assist gravity for a lazy lever?

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