Basically you are right…When these old Knife Companies went out of business the bone was bought up and every so often it surfaces.
I think it would be impossible today to reproduce the look of, lets say, Remington bone….
1, I don’t think anyone really knows how they did it…(which I find hard to believe, but it is true)...I have never heard of anyone that even knows what the machine even looked like that did the jigging.
2, the chemicals used to get that killer look may not be allowed today.
This is just my opinion of course