here's my modest set: all 'new'
top is a modern 'gaucho' fighting knife from mission in argentina i picked up a few years ago. 10 in. carbon steel blade & guard, full tang. scales are wood, riveted on. i wrapped and varnished the grip to fit my hand a bit better. the notch is usefull if you choke up on the grip.
middle is a smaller criollo from tandil, from last year or so. wood grip, alpaca fittings (german silver), 5.25 in. carbon Steel blade. nice 'S' at the blade/grip junction on the blade.
i like the leather sheaths with their central seam, belt flap and shirt protector fan at the top.
bottom is a more decorative one with an etched 7 in. 'inox' (stainless) blade, marked with a trumpet as a makers mark. un-hallmarked silver (plated?) grip & scabbard, turning a nice black patina i'd expect from a silver alloy.