There's a Texas knifemaker by the name of Bill Moore in Ft. Stockton TX listed at the Texas Knifemakers Association site at www.tkca.org. Click under Members to get his full address/Phone#. Maybe he's the guy who made them. His current MAKER's mark(that's probably where the Maker comes from on the blade) is name/city/state, but he's been at it since 1972, and maker's often change their marks(they may go from Stamping to etching their marks). Maybe he's your guy. The word Maker on the blade almost guarantee's it was made by an individual and not a factory. My 1997 Knife Directory lists his prices as from $85-$700. Might want to give him a ring to see if their his blades an what they might be worth. If they are custom knives, they should have some value.