Thank you so very much to Henk, Atlantia, Mark and Norman for the information, I certainly agree with the suggestion it is a European Style Court sword and SEA, the three headed elephant points to Laos (thanks for the flag photo)
I don't know how long Laos have been using the motiv in their flag or as a national emblem. The reason I mention this is to try to establish an age to the sword.
If we have one of our members who can read the writing on the sword, it might also be a clue as to its age.
Again,
Thank you