matlactli (T1871:1)
This notation matlactli (ten) was combined with the glyph for matl, a measurement, in the original manuscript. The notation consists of a row of ten ones (small circles), running horizontally. The ones are slightly different colors, but this does not seem intentional.
Stephanie Wood
Some notations for ones have dots or smaller concentric circles in the middle of them. This one does not. Sometime notations of ones can be vertical, L-shaped, or horizontal. See the examples, below, for the number five.
Stephanie Wood
1558
Stephanie Wood
números
matlactli, ten, https://nahuatl.wired-humanities.org/content/matlactli
diez
Stephanie Wood
Single-page codex, Archivo General de la Nación, México, Ramo de Tierras, vol. 1871, exp. 1, fol. 28r.
The Archivo General de la Nación (AGN), México, holds the original manuscript. This image is published here under a Creative Commons license, asking that you cite the AGN and this Visual Lexicon of Aztec Hieroglyphs.