Recognizing an authentic cutlass sword requires attention to craftsmanship, materials, and historical accuracy. A genuine cutlass sword typically features a slightly curved, single-edged blade designed for naval combat. Look for high-carbon steel construction, a solid full tang, and a sturdy guard for hand protection. Authentic pieces often display traditional forging marks and balanced weight distribution. Avoid lightweight replicas with stainless steel blades and decorative-only fittings lacking functional durability.