All About Pocket Knives

I found this Case Trapper Knife in my shed, and after getting most of the rust off, I think I’ve narrowed it down to about 2012 (by the tang stamp, anyway). I was wondering if this knife was originally a different color of bone, and over time was darkened/lightened? Also, if I have the year wrong, I’d appreciate any help - considering the last person to live on this land and use that shed passed away in 2009.

Thanks in advance!

ysDlexia,
Welcome to AAPK!
You have the year correct.
Not sure about the color but Case is famous for all sorts of colors on their bone handles, so the blue is likely correct, may be faded a bit.
Treefarmer