bld522 - I would suspect that they will go with invoice numbers as it seems the most logical choice, and fair.
BTW, to you and resinguy - Welcome to the Scrap Yard! This is really a great place to hang out - great knives and great people! <img src="/ubbthreads/images/graemlins/thumbup.gif" alt="" /> <img src="/ubbthreads/images/graemlins/grin.gif" alt="" /> Tom