An unusual wood figure of the ascetic Sakyamuni China, Qing Dynasty, 19th Century

the deity depicted as an emaciated figure seated with spindly arms folded holding a rosary across a raised knee with the other leg folded beneath, with an open book on a rootwood stand at his side, his large protruberant cranium borne up on skeletal shoulders and limbs, his bare torso hunched forward revealing a knobbly spine and exposed ribs (stand)