The front left knife in that big case is a Tuna Valley (GEC) 3 blade Rail Splitter made with Mammoth tusk Ivory scales and hand engraved nickel bolsters. It is 1 of 25 made. Tuna Valley was supposed to be GEC's premium brand but that branch of the company didnt last long. Some say it was mismanaged others say the expected quality missed the mark and collectors were disappointed. Who really knows why TV was dicontinued but the knives are really hard to find today and models were all made in very limited quantities. Either way it is a stand-out in my collection and one that I'll always covet.