This Linerlock Auto by Frank Potter features a blued Eggerling Damascus blade with a false top edge. The Eggerling Damascus in Potters knives are strictly proprietary and not sold to any other knife makers. The handle has blued Eggerling Damascus bolsters, front and rear, mother of pearl scales with gold anodized titanium spacers, gold anodized and fileworked titanium screws, anodized and fileworked titanium liners, and a fileworked blue steel backspacer. Nice lockup and blade seating. Excellent condition. Comes with a zippered case.