My apologies for the photo quality. I will look for an opportunity to take better ones, but for now, this is as good as it gets. The fittings on the sheath are brass and are embossed with foliage (top) and tigers (bottom). There is definite evidence that the mouth of the sheath has been built up with something to make a better fit. I couldn't tell you what the mendak is made from, but it isn't in good shape. May have been silver plated? Looks like base metal now. The whole thing is admittedly rather humble, but it is mine.
It came to me through the son of a gas company engineer who lived somewhere in Indonesia in the 1970s. It was explained to me that he traveled from island to island as part of his job, and the keris was most likely acquired in a village well off the beaten path. It sat mostly untouched until last year.
Thank you for your insights. As I said, I'll see if I can get better pictures. Are their any specific portions of the keris that would be helpful see in greater detail?