Before I explain how I would dismantle that knife, I have a few questions-
Why do you want to take it apart?
Do you want to preserve/keep the handle scales?
Are you confidant that you know how, and have the ability, to put the knife back together?
As a kid, my father always told me "Don't take something apart unless you're sure you can put it back together again. And if you take something apart and you can't put it back together, don't come cryin' to me".
Here's how I would dismantle that knife-
Remove the blade first to relieve pressure on the lock from the spring. That means removing the pivot pin.
For the pivot-
If the pivot pin is difficult to see, I'd rub the tip of a black felt tip marker across the bolster to try and reveal the pin. It may be necessary to wipe some of the ink off.
After I located the pivot pin, I'd place the knife side down on a piece of wood with a 1/4" hole drilled in the wood. I'd position the knife so that the pivot pin is over the 1/4" hole.
Then I'd use a pin punch just a little smaller than the diameter of the pivot pin, and a hammer, to punch the pin slightly out the other side. Tap lightly with the hammer, then tap a little harder if necessary.
Once the pivot pin has emerged a little from the other bolster, I would place masking tape over that bolster, with the pin sticking through it, then I would file the peend head of the pivot off.
Then I would turn the knife over on the piece of wood and use the pin punch to tap the pin out through the other side (punch the pin on the filed-off end).
For the handle/lock/spring pins-
If I wanted to preserve the handle scales I would wrap the knife with masking tape leaving the pin heads exposed.
I would very carefully use a pointed punch to tap a small divot in the center of the head of each pin on one side of the knife.
Then I would use a drill press and a drill bit the same diameter as the pin heads to carefully drill the heads of the pins off.
Then I would use a pin punch to punch the pins out (punch them on the drilled ends).
Performing this method VERY CAREFULLY will preserve the handle scales.