[Aztlan] Unidentified Tonina glyph block

[George Haas]

Thanks Sebastian.

I apprchiate your quick responce. 

I'm aware of the "tzu" sign and its variant forms however, I still see an "eye" and a row of "teeth" (forming the half-faced skull) on the left side of this glyph. Is this a normal "tzu" variant; for these facial features appear clear to me, or am I just projecting form to the "eroded" features?

George Haas