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....
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"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