Indonesian knife

[rockelk]

I received a knife from Surabaya, Indonesia. Attached are some photos. The knife has some Arabic? Etching inscribed on the sides of the blade. The two sides have different characters. I attempted to photograph and capture the writing. I also tried a charcoal rubbing and photographed the sheet. Would anyone care to tell me more about this knife, level of quality (i.e. tourist piece) and / or should I attempt to improve its appearance, if so how? I sincerely appreciate the input I have received from this fantastic site.