Otay. Here I brought in my old FBU. Not the biggest, a bit over an inch total. Has some even honewear approaching moderate. The scales were on it as I received, yet the top was pinned with a nail....
Had to redo the top pin and find some proper period collars for the top. That's it. No frills.
Attachment 248615
I am fairly certain the scales are original and in original configuration.
The blade tucks in right close to the wedge, so I feel this one is Kosher.
Attachment 248616
So in measuring, let's start with those scales... I see 127/128 mm pin-to pin centers.
Attachment 248617
Now the blade. about 125 mm from the center of the top pin to the outermost bottom of the blade.
Attachment 248618
And as to the cutting edge. I can proclaim 76 mm or 3 inches. The bevel runs up the toe and up the heel a bit.;)
You be the judge!
:rofl2:
Attachment 248620
So anyway, these things were made by hand with lots of hands into the final product.
Even as-new, I expect there were some variations.
A point like the one in the OP is not original, I think? I would call it a slash-point rather than French.
If I was to cut/grind this one same, as shown by the clip, the length from top pin center to bottom tip would stay same...
Attachment 248624
Who knows?