All About Pocket Knives

I found this Case not too long ago and for an older knife it has an unusual black shade of bone, both sides are the same without a hint of brown. Does anyone know if it may have been some sort of special issue or did someone just leave it in the dye too long?

this was just made in an era where case was changing thier dye, alot of the bone from this era was very dark. Some will have the speckles out toward the bolsters but some do not.

Thanks, thats what I thought but I don't often look at newer Cases so I wasn't sure. I think this one will make a good EDC.