Vishnu Anantasayin Lintel, Phanom Rung Sanctuary
The Vishnu Anantasayin posture shows Vishnu declining on the serpent Ananta on the Ocean of Milk. Lakshmi, the consort of Vishnu is seated at this feet. You can also see Brahma arising from Vishnu's navel.
This famous lintel (of course, also because of its disappearance) disappeared from the site at Phanom Rung and was later found in America. It was returned to Phanom Rung and reinstalled in 1988