I came across this picture of climber John Gill doing a one armed “front lever”. You can read the article here [John Gill on Training].

Turns out John is a mathematician, professor and gymnast also! Interesting guy. What’s even more interesting are the strength exercises he was capable of. From Wikipedia:

“As an amateur gymnast in the 1950s, 6’2″ and 180 pounds, Gill specialized in the competitive rope climb and the still rings, achieving a time of 3.4 seconds for the 20′ rope climb (from seated position on the floor, arms only) and accomplishing a number of difficult stunts on the rings, including inverted and olympic crosses, giant swings, and slow pulls from hang to handstand. He also engaged in what are now called bodyweight exercises similar to gymnastics, achieving seven one-arm pullups with the right arm and five with the left, several one-finger one-arm pullups, one-arm pullups carrying twenty pounds, one-arm pullups on a one-half inch ledge, and one-arm front levers.”

At this point I cannot do seven two arm pullups. One arm seems impossible.