This is an extremely rare spear point crafted from pottery and dating at least to the Han period of ancient China (circa 200 BC). It could be older than that but I am having difficulty locating references on these items. Stylistically the piece is likely from one of the minority cultures in Southeast Asian and the only other ones I have seen were attributed to the Dong Son. An interesting attribute of these pottery points is that when suspended from a string they make a very melodic tone when struck lightly. This one is 17.5 cm long and weighs a scant 27 grams. Two scanning electron microscope qualitative and quantitative analysis reports are included. The tests were performed on a piece in the same lot that had to be damaged to complete the analysis. One report covers the surface elements and the other covers the internal elements. I have four of these so yours might not be the one pictured but on request I can send a pic of the actual point prior to finalizing the purchase.