Ancient and antique Asian antiquities and antiques sword

The hilt and blade form one solid bronze piece and have a decorative engraved pattern on the surface with the bottom of the hilt flaring. The central pattern near the hilt is that of a grotesque creature looking out. A similar pattern is on the opposite side. Covered in a dark patina with traces of a vivid green patina.
Asian antiquities are authentic and come with a Certificate of Authenticity.
Asian
200 - 400 AD
15 1/2”