This Pre-Columbian Neolithic Celt is from the dry Pacific highlands of Western Panama. This celt, made out of volcanic Basalt, has been knapped and then the cutting edge has been ground down, so it is Neolithic, rather than Paleolithic. I lived in Panama in the 1950s and 1960s and found similar celts around Gatun Lake and in Western Panama. I brought several celts that looked just like this one to U.C. Berkeley in the 1960s. A professor in the Dept. of Anthropology said that my celts resembled similar celts in the U.C. Berkeley collection that were dated between 500 B.C. and 1,000 A.D. This particular celt is a typical size and the entire surface is ground, so it is probably a more recent celt. There are several chips on the edges, including a couple of chips on the cutting edge, which is still sharp. The cross section is very lenticular. View pdf files showing Panama Celt sale prices on eBay: Celt #1 and Celt #2.