Sargent and Greenleaf lock with two number combination???

[Dan Forrester]

A couple weeks a go I picked up a another Diebold TL15 steel plate safe. The safe was in great condition and only $300 and I was able to lift it with my truck's lift gate.

Only weird thing about the safe is that is that the Sargent and Greenleaf lock only has a two number combination. You spin the dial to the left to 50 and then then to the right to 10, the dial stops and the safe opens. I have another identical Diebold safe with the exact same lock but it has a 4 number combination.

The lock has a sticker on it which says:

Combination Lock
Group 2M
37YM

Imprinted in the housing of the lock it says it is a series R6700.

Is this lock damaged or defective. Could I fix it if I bought a combination change key or should I just buy a new lock?

Thank you, Dan

 

[a1abdj]

The lock is set to a single number. The number where the dial stops is not a number itself. I do find it interesting that it stops at 10 though, as that's not usually where it should stop to open.