Tjängvide image stone elements has been found on the inscription. The stone is decorated with several figures in an upper and a lower field, which are separated by a braided pattern that resembles valknuts. In the upper field, there is a large eight-footed horse and a small rider who is offered a drinking horn by a woman, and there are also some other figures, such as a quadruped animal and some less discernible images. The rider on his horse is usually identified with Odin on his eight-legged horse Sleipnir, or a dead man who is arriving at Valhalla on Odin's horse. The female
Legged Squad Support System was approximately the shape and size of a horse. A stereo vision system, consisting of a pair of stereo cameras mounted into the 'head' of the robot, was integrated alongside a light detecting and ranging (LIDAR) component in order to enable it to follow a human lead and record intelligence gathered through its camera. The initial contract for the Legged Squad Support System was awarded to Boston Dynamics on December 3, 2009. The continued evolution of the BigDog led to the development of the LS3, also known as AlphaDog. The contract schedule called for an operational demonstration of two units