Way, way back in the day, I seem to recall Spyderco selling these at a deep discount in their factory store, and at the early 2nds sales. I believe the story was that they were warranty returns that were fixed up and resold w/o warranty. I could be slightly off in my recollection, however.
Having said that, my father-in-law does indeed have one that I am sure he purchased from the old Spyderco store in Golden.