[Lintel 15](https://www.peabody.harvard.edu/cmhi/detail.php?num=15&site=Yaxchilan&type=Lintel):
Carved limestone lintel with glyphs and a scene representing Lady Wak Tuun, during a bloodletting rite. She is carrying a basket with the paraphernalia used for auto-sacrifice: stingray spine, a rope and bloodied paper. The Vision Serpent appears before her springing from a bowl set before her which also contains strips of bark-paper.
The three lintels from Yaxchilan Structure 21 record Lord Bird Jaguar's enactment of the ritual depicted in lintels 24, 25 and 26, although they were arranged in a different order. This lintel repeats the vision stage of the bloodletting shown on lintel 25. The serpent coils up through a beaded blood scroll and from its mouth emerges an ancestor the lady has contacted in the rite.
Height: 87.6 centimetres Width: 82.6 centimetres Depth: 10.7 centimetres