Making a locker key

I had a client call me the other day saying that he had a locker at Adelaide Oval that he had lost a key for.  He dropped the lock off to me and asked if I would be able to make a new key for it.
As I previously described, I was able to read the lock and impression a new key by hand.  The only difference this time, was I didn’t have a blank that matched exactly.  I took a blank that was close and had to file it to fit the keyway.  This time I remembered to take some pictures.  I am a much better locksmith than I am photographer.