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  1. #1
    Join Date
    Aug 2014
    Posts
    66
    Country: United States

    Default Old Sargent keys

    Hello everyone,

    I have a question about early 1900's pin tumbler Sargent keys. I have a cylinder from I'm guessing 1950's or earlier that has five pin keys but six pins in the lock. It appears that the 6th pin is the deepest cut possible; keys are clearly cut for 5 pins with a notch in the tip for the 6th pin. It looks just like old Russwin cylinders that had the "guard pin" in the 6th chamber. The keys are stamped LB99335X. This is a lock straight out of a factory box, never installed. Anyone seen this before or know what the X in the key number means?

  2. #2
    Join Date
    Jan 2013
    Posts
    546
    Country: United States

    Default Old Sargent keys

    Would be more helpful if have picture of the lock. AS key stamp LB99335X. The cut may be 99335. The X could be a no cut but if you have the key for this lock. It the key five cut or six cut..??...Timothy.....

  3. #3
    Join Date
    Oct 2010
    Location
    Tonawanda, NY, USA
    Posts
    755
    Country: United States

    Default

    Quote Originally Posted by YALE7750 View Post
    Hello everyone,

    I have a question about early 1900's pin tumbler Sargent keys. I have a cylinder from I'm guessing 1950's or earlier that has five pin keys but six pins in the lock. It appears that the 6th pin is the deepest cut possible; keys are clearly cut for 5 pins with a notch in the tip for the 6th pin. It looks just like old Russwin cylinders that had the "guard pin" in the 6th chamber. The keys are stamped LB99335X. This is a lock straight out of a factory box, never installed. Anyone seen this before or know what the X in the key number means?
    Is the 6th pin flush with the shear line? If so, the cylinder may have been set up to work with both 5 and 6-pin keys for some special application or provide extra pick resistance.

    Pete Schifferli

  4. #4
    Join Date
    Aug 2014
    Posts
    66
    Country: United States

    Default The 6th pin is just about at the line

    Quote Originally Posted by Pschiffe View Post
    Is the 6th pin flush with the shear line? If so, the cylinder may have been set up to work with both 5 and 6-pin keys for some special application or provide extra pick resistance.

    Pete Schifferli
    Yes the 6th pin is almost right at the shear line even when no key is inserted. The keys are clearly 5 pin, with the tip cut down enough to barely touch the 6th pin. The box it came in has GGMK stamped on it. I'm assuming this strange setup is related to master keying.

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