Seller: dmila55 (2,229) 100%, Location: Lake Forest, California, Ships to: Worldwide, Item: 332833955886 This is Extremely Rare Antique Neolithic Big Carved "Ritual Alien Knife" c. 2500 BC from my personal collection. Made from jade stone. 4-5 thousand years old. Very intriguing design with "dancing aliens". It is interesting to note that similar images are found in the ancient ceramics of Western Mexico and there is an assumption that this is an image of "aliens" (see picture). From mystical Hongshan culture. Authentic guarantee. Big size - 22x17 cm. Weight 1345 gram. Excellent antique condition. Free shipping in US. International - $30.