This is a relatively long blade Sewar. It measure 12-7/8” , ¼” thick at the base and has thin groove near the top towards the back. The blade is double edge 9” from the point. A black patina is on the blade due to age. Handle is 3-1/2” long and made of water buffalo horn with interesting serrations on the back.
Wood scabbard is intact with water buffalo horn top section. Single braid of rattan is found near the bottom.
An old Sewar from Sumatra, Indonesia…..70 yrs old +