SUCCESS!!

[HarrySmith]

I had 2 WE 29 locks. One a 29S and one just a 29. I only had one key, the 29S. It works in both locks. I believe the difference is a deep cut to fit the vault locks. I have a bunch of keys I bought from eBay. I went through them to find one that was similar but longer and not exactly the same cuts. I spent about 20 minutes with a Dremel and a bench grinder cutting and grinding and it works! Picture attached.

[Key2871]

Nice, Harry the lock Smith?

[poplar1]

The 2 keys on the left look like 30C keys for vault doors, not 29A (Bell) or 29B (COCOT) upper housing keys for single slot coin phones.

[HarrySmith]

The 2 keys on the left look like 30C keys for vault doors, not 29A (Bell) or 29B (COCOT) upper housing keys for single slot coin phones.

They may well be. I have no idea. The one in the middle is the one I cut that now works on the 29 lock. The one on the far left is one that is similar to the one I cut before I cut it. I matched up the 2 slots that run the length of the key, that was the one thing I found that was different on a lot of the other keys. I also looked for one that had enough metal to make the"teeth" and slots I needed. I have a number of keys and none are marked 29, 30 or 10 like other ones I have & have seen.