This is a kozuka, a type of sword fitting for a Japanese sword. The handle appears to have gold inlay of a dragon. Characters are carved into the blade. I believe they read, "Raijo (Lightning Protection) Noshu Kyokajosan Shizu Saburo Kaneuji." The blade length is less than 15cm as shown in the image, so there should be no particular problem. The handle is approximately 0.4cm thick. Please consider all measurements as reference values, as they are amateur measurements. Details are unknown, so please confirm and make your own judgment. Condition: Possible stains, age-related deterioration, and signs of use. Thank you for viewing. #Kozuka #Weaponry #SwordFittings #Antique #Crafts