Well Tim, i think it all depends on just how much of the folding stuff you actually laid out for this keris. To me it looks like a genuinely old Jawa keris in Dyogyakarta dress. The pendok (the metal thingy on the sheath
) looks like a nicely reprossed white brass or mamas. The blade may be thin now, but keep in mind that it has probably seen many years of acid washing and was no doubt much stouter when it was made, so i wouldn't count it out as a usable blade. The pamor looks like it might be the very popular wos wutah (scattered rice). I think it is a very collectable old piece, but it doesn't look like anything too extraordinary to me. The hilt does look nice with a nice patina. Are you sure it is horn and not some dark wood?