I'd venture "Mid-90's" (ish) for the last of the green canvas, supplied by the shop. Finger grips would not be an option in this day & age, nor the W-G handle shape. The "non-catalog" version of the Model #20 is the only living survivor of this terrific handle shaping.
This knife also sports more option than is currently "doable":
1) Stainless blade
2) Thumb notches
3) Nickel silver single hilt
4) Squared-top
5) Aluminum & black spacers
6) Green canvas micarta handle
7) Ward Gay handle shaping
8) RH finger grips
9) Wrist thong
10) Brown-stitched Model "B"" sheath, with pocket hone
Happy Sunday members....&...
Stay Sharp,
Capt. Chris