Anyway, I did notice something about the blade stamp, it is partially ground off.
What I want to know is the a factory second?
I know from the GREAT research area here it is a 1980 issue, Ten Dots, Lightening "S" in the "USA", but the CASE XX is ground off.
Also the is a groove at the edge of the bolster, you can see it in the pictures.
I bought it thinking it was a second and paid accordingly, but I LOVED the scales.