Explorer Survivor II Knife with sheath 
NO. 21-052
Made in Japan

From what we can find this knife was made in the 1980's. Comes new, never used in the box. See pictures, box will show wear/tear/yellowing from age as well as the leather sheath parts (see pictures). Boxes have hole in the side from the knife poking through.

9 Inch Blade 
14 Inch full length