Check out the edge on the blade.
The blade isn't sharpened all the way to the back.
This is common with all the protoype and early pre production knives.
Some of these blades are also used on the early first production and early production knives.
This knife #0000 of 1000 has a red & black G10 backspacer unlike the other pre production knives that have the black molded backspacer.