A little cleaning and etching would be better to judge the blade profile. I don't think this piece is a junk at all. This is rather a good and rare dapur (Karna Tinanding) with long straight blade and luks 5 or 7 at near tip. One exceptional detail is that one kembang kacang has jenggot and other is plain smooth curve. Fittings are of Balinese style (maybe Lombok). How old...? I'm not sure but assume this could be dated end 19th century.
Again, would appreaciate if this blade is clean and etch so that we could comment further.