than I could possibly have imagined. Imagine my surprise.
I have a very good variety of tools, and several years of picking experience, but none of that is helping me with this lock.
I'm trying my standard go-to tools, Peterson slender gem, and my SouthOrd slimline picks. I've tried bottom tension, top
tension, light tension, heavy tension...you name it. I'm getting no feedback from this lock. The pins can bind at the
shearline when I lift them and apply torque, but I cannot get them to do -anything- but spring up and down as if my methods
were ineffectual when I attempt to pick it normally.
As far as I can tell, it's a 5 pin pin tumbler lock with a rotating plug. The keyway is tightly warded to the point some of the warding
has been drilled to allow the pins to drop low enough in the keyway. The pins themselves appear dull gray, with a lathed/serrated
texture. Some of the very little feedback I'm able to get from the lock suggests that the top pins may be serrated, but I'm really unsure.
As I mentioned before, I'm not getting hardly any feedback from this lock while I lift the pin stacks. Every one of them seems to just drop
back down regardless of the level of tension I use.
Here's some pictures, because pictures are always fun:

First side.

Opposite side

And the keyway.
I can't figure out what I'm doing wrong, or what I'm not doing right, so if anyone has any insight on this it would be appreciated.