 <em>Hammerstone</em>, ca. 4400-2170 B.C.E. Diorite, 2 5/8 x 1 5/16 x 4 1/2 in. (6.6 x 3.4 x 11.5 cm). Brooklyn Museum, Charles Edwin Wilbour Fund, 07.447.1002. Creative Commons-BY (Photo: , CUR.07.447.1002_NegID_07.447.1025GRPA_print_cropped_bw.jpg)