Yale USN Push Key Lock

[MrWizard]

Can anyone tell me what year these Yale USN push key locks were made? Got this one in brand new condition wondered how old it might be.

http://img703.imageshack.us/img703/3712/h90l.jpg

http://img5.imageshack.us/img5/2237/cob7.jpg

[Timothy]

If you can give up picture of the key for that lock it may help more. The lock may be between 1900 to 1930.....Timothy....

[MrWizard]

If you can give up picture of the key for that lock it may help more. The lock may be between 1900 to 1930.....Timothy....

Here are the keys for the Yale USN lock.
The key has the code and the keyway JB.

The lock also has J B on the plug.
J on left side, B on the right of keyway.

Richard

[Timothy]

You do have the original key for that lock. The Letter JB is the key blank number and UR5174 is the code number for the lock. Please keep this in mind as this is military padlock as I don't think going to find this code in locksmith code book. As most military made up there own code number for there base only.

[jeffmoss26]

A friend of mine had a similar Yale padlock with a UR code.
The code book said it was a JA keyway blank but in actuality a Y52 fit and worked the lock.

[Dean Nickel]

Yale and a few other manufactures have been known to change the keyway for a lock and use the cuts from a different keyway code. So in this case the cuts of the key might match the code.

[mayya]

I have this brass safe plate which was given to me as a memento and wanted to find out a little more about it I have looked but not yet found anything I would like to know the age of the plate all I can give you is the following if this helps thanks.