Throne back (Tibetan: gyab yol) for the special figure of Nampar Gyalwa a form of Tonpa Shenrab, founder of the Bon religion. This throne back is different from others most notably because the lion at the bottom is eating a human figure and the winged-lion-horse (dragon) above is eating a naga serpent spirit. This throne back design can also be found on paintings the Four Transcendent Lords.
According to the text the animals should be a lion, dragon and sea monster. This is described in detail in the story of Nampar Gyalwa found in chapter 50 of the Ziji a twelve volume biography of Tonpa Shenrab.
Jeff Watt & Samten Karmey 12-2006