I have the exact same knife(it appears), minus the signatures. Mine has a serial number only. The inlay is Elderwood Burl and they came out as a Limited Edition in 2002, the 100th Anniverary of Buck knives. Why yours is signed and not serial numbered could possibly be answered by CJ if he sees this thread. I think one of the signatures is his and the other is Chuck Bucks. I have a couple of knives with the blades signed just like that.