Q: What are the numbers on my key?
A: There may be several different numbers / letters on a key. Often these numbers indicate the key code, especially if they are found on the bow (handle) of the key. It is a good idea to record these numbers and keep your notes in a safe place. Often, a new key can be obtained if you know the key number.
Numbers or letters near the blade of the key often only indicate the key blank used, but not the cut of the key.