Techimalli (CmpRG)
This simplex glyph from the Mapa de Cempohuallan (Zempoala, Cempoala) represents the word techimalli, a circular shield has a yellow or gold background with a turquoise-colored rim around it, and, in the center, a design of interwoven, neutral-colored stones (tetl). Hanging down from the shield are yellow or gold, sky blue, and red feathers.
Stephanie Wood
In trying to refine a translation for techimalli, it would appear that it could be either a shield made of stone (which would be heavy to carry in war, although it could have ceremonial uses) or an in-situ stone carving of a shield. Two other glyphs for techimalli appear in TLACHIA, the online digital collection. One is said to look like a "rosetón de papel" (paper rosete) and the other an "adorno en forma de escudo" (an adornment in the shape of a shield).
The gloss for this glyph makes it clear that it is a techimalli, although the paper is folded over the "te" part in the gloss image. Victor M. Ballesteros (La pintura de la Relación de Zempoala de 1580, 2005) has suggested this was a Nahua name for a place called San Cristóbal north of Pachuca, Hidalgo, today. The person who provided the gloss on the manuscript map may have inadvertently left off the locative suffix. It could have been Techimalpan or Techimallan, or the like. A similar three-ended tetl appears in a small circle filled with blue near the lower right edge of the Cempohuallan place glyph (see below).
Finally, the glyph for Tehuehuel (see below), which is less fancy but does recall this glyph, may have associations with pregnancy and childbirth.
[..]chimalli
techimalli
Stephanie Wood
1580
Stephanie Wood
One could say that the stone is in front of the shield, but the fact that it is not purple and orange, and not brought into the foregrown, but made a part of the design of the shield, is the reason for calling it "merged" here.
stones, shields, escudos, rodelas, feathers, plumas
te(tl), stone, https://nahuatl.wired-humanities.org/content/tetl
chimal(li), shield, https://nahuatl.wired-humanities.org/content/chimalli
Map of Cempohuallan (Zempoala, Cempoala), https://exhibits.lib.utexas.edu/spotlight/mapping-mexican-history/catalo...
Benson Latin American Collection, University of Texas Libraries, University of Texas, Austin