Sure, Ray - I mean Lin!. It's a method of really making the knife hardware appear to "dance" in the light, and unless you know what you're looking for, it's very subtle.
My photography stinks, but maybe you can get an idea of what I'm saying by looking at the top photo.
On that guard, the front leading edge - not the face or the sides - but the very front corner of the guard has been relieved at a 45 degree angle. Leaving only about a 1/16" flat area that goes all the way around the guard. This is handsanded up to 1500 grit and buffed/polished. Then, the remainder of the guard, which had been previously finished, is finished again with really straight, deliberate 800 grit, avoiding the poished edge.
As well, the butt cap corner was relieved the same way, polished, and then the flats re-sanded at 800.
Now it takes time, but the interior grooves in fluting and other file work are done the same - then the remainder sanded flat.
If the entire guard, butt cap, collar, etc., is either fully polished or sanded flat, it just sort of disappears. It's dead and lifeless.
You can't tell from this photo, but the very point of the take-down nut was sanded flat - that you can see. But that little flat point is polished, and the tapered body of the nut was sanded "flat" to 800.
You just wanted me to type all of this - didn't you?