This is not a USMC sword, but rather a rather poor copy a post-WWI M1859 Marine NCO sword, probably from India. There is virtually nothing correct about it. The pommel shape and decoration is wrong. Genuine examples have a rounder dome and a neat, clear band of laurel leaves around the bottom edge, not ill-defined squiggles. The guard is way too thick and the decoration too crude. The ricasso is at least twice as long as on genuine examples. The blade lacks the fuller found on the originals. The tip is wrong, but could be a result of repointing of a broken tip. The scabbard is wrong in both design and materials. The post-WWI M1859 features a brass-mounted leather scabbard with two mounts, the top with a frog stud and a drag with a blade, not just a simple chape.