Yale two-key lever lock from bank safe
I've never messed with a lever lock before, so I wanted to take it apart.
I assume the teeth on the levers are an anti-picking measure. Looks like they'd be pretty damn effective.
4 levers for one key, 6 for the other.
Looks like someone ground the lug off the bolt so it only requires one key. I see the drive lug for the toothed levers is also notched, making our lives even tougher.