Hi to all Friends of the Blade : I just finished this Medium size Trapper in jigged Amber bone , What looks like shrunken sheild is the jigging concaves around the shield ,looking at it in person you don’t see anything but the jigging marks which is lower than the shield ,but it is not shrunken . This knife is as close to perfect as they come. The blade an spring are made of CPM-154 stainless steel at 60 rc on the heat treat . The opening pull is around 3 to 4 with good snap in all three very flush positions. The closed length is 3.5” . Comes with Letter of Authenticity and Black leather zip pouch . Please give comments if you wish an enjoy this Knife . Thank you , Joe