Boy, there's really a lot.
Liner lock of course. And similar tang-block locks like: Sebenza-style integral lock. Elishewitz's bolster lock.
The pin-block locks -- Axis, Rolling lock, and the bolt-lock (forgot the exact name) Gerber used to use -- I think Meyerco might be using it now.
Lockbacks, both midlocks and backlocks. And how about the A.G. Russell-style, the one that uses a coil spring.
Crawford-style frame locks.
There are many different kind of button locks. The kind from Speed Tech, from GT Knives, the Gerber Paul, the taper lock on BMs automatics, etc. etc.
And now you have the zillions of cool custom locks. Ennis's T-lock, Sawby's and Walker's dozens of locks between them, etc.
It's a big job, collecting one of each of these, but I feel you're just the man to do it
Joe
[This message has been edited by Joe Talmadge (edited 25 October 1999).]