Tzompanco
This detail features a glyph for the place name, Tzompanco, which has as its root the word for skull rack (tzompantli). This skull rack only shows one skull, impaled on a horizontal bar that rests on two upright posts. The gloss gives “the place of the deaths head.” This site has a numerical component (five dots).
To see another manuscript representation of a tzompantli, see the Durán Codex, https://en.wikipedia.org/wiki/Tzompantli#/media/File:Tzompantli_Duran.jpeg
and
the Tovar manuscript, https://upload.wikimedia.org/wikipedia/commons/thumb/a/ae/Tzompantli_Tovar.jpeg/250px-Tzompantli_Tovar.jpeg
A carved representation of a tzompantli can be found at the Templo Mayor archaeological site in Mexico City: http://media-cdn.tripadvisor.com/media/photo-s/01/d5/d8/18/templo-mayor-azteca-tzompantli.jpg
[SW]