The high headdress ('jatakamukuta') containing an image of the Buddha Amitabha identifies this figure as the bodhisattva Avalokiteshvara. Together with the long dhoti, with vertical folds in the middle and a cloth belt tied into a knot either side of the body, this denotes the influence of the Pallava school from Southern India. The piece is attributed to the Srivijaya culture, which dominated parts of Indonesia and Peninsula Thailand from the 600s to 1200s.
The Asian Collections, AGNSW, 2003, pg.324.