This is a copper alloy or bronze dagger or spear from the ancient middle east, probably 1500 BC or earlier. It is a common type with flattened tang and heavy central rib. It has a lovely green and blue patina. The tang appears to have fractured at a perforation. There is a very slight bend to the blade as well. The overall weight of the piece 94 grams. It measures roughly 24 cm in length. This is an excellent piece for study or to start your ancient weapon collection.