The amber stag ,like on Gary's Cramer knife ,is pressure dyed ,professionally. In the past I have had a few knives where the dye came off a little but but not much at all ,and it ages very nicely over time. Any other Sambar stag that has taken on " amber " coloring ,that's from age and yes the PP as mentioned above by SVT . That also would change a little I'm sure with pocket time & useage.
The amber like on Gary's knife,sometimes to knife buyers who like stag is less appealing ,in my experience,but it actually costs more for the knife maker to purchase,because of the added expense of the pressure dye process.
I'll add a picture of this same trapper after some pocket time .
New
These just now ,this knife has been carried a bit ,not too much ,but enough to show subtle change ,especially on the backside
I particularly like this amber dyed stag ,I'm not much into jigged bone although I feel it is great looking . The amber stag gives you colors of dyed bone with durability of stag. And with that said ,it allows a knifemaker to use a lower grade of sambar and get good results too.
There's very little " bark" texture on this side of this trapper but it looks fantastic !