I had'nt thought of using the serial numbers to i.d.stolen knives,or as a means to track the history of ownership;good thinkin'!I'd be willing to pay extra if that was offered as an option.In the event ScrapYard finds the serial number/dog tag idea a no-go,maybe someone who's set up for it could offer that as a customising option?Would'nt take much to rig up a press to stamp out aluminium tags,and there are several options for marking knives...