Sword ID Help Needed

[Robert]

This is a sword that I've had for awhile and need help in identifying. The steel blade is of diamond shape and is 21-7/8" in length. The tang is set into the grip with what I believe to be pitch or some other type of resin. At the hilt the blade is just over 1/4 " thick. Hilt is made of wood and is 5-5/8" in length, 1" thick and 1-1/2" wide. Unfortunately there is some damage to the carved end. Total length of sword is 27-1/2". Scabbard is a dark wood with four large diamonds (1") and four small diamonds (1/4") carved into it. There is also a star about 1" across carved into it. There is some kind or writing carved into the hilt that can be seen in one of the pictures. I will do a rubbing of it later and post it in hope of getting a translation. Any help in identifying this sword and the writing would be greatly appreciated. Thanks.

Robert