Yoke. Culture: Olmec. Dimensions: H. 7 1/2 x W. 5 7/8 x D. 6 in. (19.1 x 14.9 x 15.2 cm). Date: 10th-4th century BC. A prime example of a Preclassic Mesoamerican "yoke" (so named for its formal similarity to modern agricultural yokes), this stone scu