Seeing Ron's post of the old thread brought up a question.

rocky, how long has your father had it?

the reason I ask, that knife or one like it was at the Blade Show for several years. IIRC, it may have changed hands a few times at the show over a several year period. I don't think it had a sheath with it though. So that would indicate there was more than one like it unless a sheath was added if your knife and the knife at Blade are one in the same.