Need Help With Dating A Kalinga

[JK Knives]

I have this older Kalinga, with black micarta handles, that I need help dating. The knife came in a hard case, and has never been used, or resharpened. If anyone can help, I know you guys can.
Thanks!

 

[David Martin]

JK, The hinged box and stamp puts yours at 74-81.A very nice 401. DM

 

[JK Knives]

JK, The hinged box and stamp puts yours at 74-81.A very nice 401. DM

Thank you! I`m cleaning out some of the knives I don`t really care for, and needed the info so I can date it correctly. Need to make room for more 110`s!