BACK FROM HANDS.
51a. No. 1 lying on back, hands close to head; No. 2 steps in No. 1’s hands and does a back somersault, assisted by No. 1. Figs. [70], [71].
51b. Same as No. 51, only No. 2 takes a few steps and jumps in No. 1’s hands, going for back immediately.