In the March 2001 Blade magazine, there's an ad for 2 traditional-styled pocketknives by Kershaw, each with thumb stud/one-hand opening and liner locks. The blades are AUS-6A, nickel bolsters, and brass and stainless-steel liners(I assume the locking liner is stainless). Both models look pretty cool to me, especially the smaller model 4380 Double Cross, with clip and wharncliffe blades. The larger Double Duty 4390 has clip and long spey blades.
Jim
Jim