"Perhaps the most overlooked knife in the range and maybe it is the least spectacular looking blade shape but the Sable is, in fact, one of the most practical and versatile of all the blade shapes. The full thickness of material on the back edge makes it a strong knife and the high grind and sweep of the blade offer a perfect utility knife which can double for most skinning tasks." The blade has a notched thumbrest, .261" blade stock and 1.191" blade depth, integral construction. Includes original black leather sheath. Made in South Africa and is stamped ".5". Has some wear on the finish, some dings in the edge, has been resharpened, has some wear on the sheath, otherwise good condition for its age.
I reached out to the endlessly knowledgeable Anne Reeve to inquire about the ".5" stamp on the knife. This is what she had to say:
This is interesting - somehow these old knives are always a challenge. My best interpretation of this number is not that the dot is a decimal but the heat treatment test mark that coincidentally ended up in that spot. I know it took us a while to train the different heat treatment company folks to test on the back and not the presentation side.
The date recorded for numbers 1 - 6 Sable I's is February 21, 1987. I am inclined to think the material is D2. There is no note relating to 9" blanks but there is one dated February 21, 1987 for 7" blanks saying changed to A2. Curious that it's the same date! I think it unlikely the Sable I was machined and numbered on the same day and would assume it was in production already therefore made of D2.
Wish I had more definitive answers - we just don't have good records and .... darn, these knives don't talk!