I think that a production 1971 year.
So it was written in the old Sheath.
New sheath from the manufacturer,
which me was advised in this forum +
grinding pocket stone from the collection Rhett Stidham,
I took on ebay, perhaps from another RMK.

The knife is very handy. Steel viscous, sharpen easily,
very nice cut meat and vegetables. Blade began to darken.

The only negative - the balance of the knife strongly shifted
towards the handle (is to blame brass butt cap + lightweight blade).
The next order I will try to do little knife with lightweight handle
(no Brass or NS butt cap, only stag, wood or micarta).