Okay...here's a little more on the subject:
What Sexton said about 2nd Cut Stag...I've heard as well. Like Ivory, it's the mono-colored, non-detailed inner layer of the staghorn left behind once the pretty stuff has been removed or what they'd call "Bark" if it was ivory. Unlike Ivory...a smooth, unjigged stag handled knife would be pretty uninteresting and where in Ivory, it's outstanding.
What Pheifer said I've heard as well (and read in his book), but it's not about the Tested era like said. EXCEPT...I do have an example of a CASE XX with a 2nd Cut jig put to the front scale to make it appear like real stag and I believe the material used is Stag (not bone). Unlike the rear scale that is 1st Cut natural stag, the front is comprised of a series of "worm grooves" that run horizontally to give the appearance of a grooved Stag scale. You can tell they are man made and appears to be the same process used on a CASE XX 2nd Cut Red Bone 6265...you can see the start and stop ridges inside the groove's trail. I'd think this would be both 2nd Cut Stag [as in Sexton's example...the inner layer] and then worm jigged and treated to look like real stag. I'll get a picture up in the next day to two
if anyone's interested.
Now back to the pictured Tested 6265 2nd Cut Stag or Bone...Both Sargent's and Parker's Guides reference 2nd Cut Stag, but no reference to 2nd Cut Bone in the 65s. I'd have to think that the 2nd Cut they are referring to is more the fact of making a second cut over a Stag (likely the inner stag) and probably in addition to the regular Roger's Jig. Kind of like in the 80's with those 2nd cuts that were used to adorn characterless stag. To just Jig it and leave it, it might as well be bone. So, to worm jig it too after it;'d been jigged maybe defined it as being Stag vs bone. Maybe?
Now...consider this. If you look at a bone scale (look at a natural bone or a piece of Appaloosa bone), you can see little striations in the bone. Sometimes specs, or little hairline lines that you can tell are part of the bone's composition. Now look at a clear section of Stag. There are none of these striations. It appears that Stag is "finer" or "tighter" in make-up...not porous like bone may be. It's difficult to see on the Tested's I've shown because the dye is pretty consistent, but in some of the lighter areas, it appears that the scale is dense and smooth, not having the porpos characteristics that a cow bone would have. Maybe this characteristic combined with the 2nd Cut theory says it is Stag. Then again, a DNA test would be definitive...but you're not sampling my scales!
