A couple of years ago I saw a G-30 that was NNN000.
I almost bought it because of the S/N but I got the Austrian proofed 19 that was right next to it instead....
"If you're not shootin', you should be loadin'. If you're not loadin', you should be movin', if you're not movin', someone's gonna cut your head off and put it on a stick." -Clint Smith