Pre-Columbian Hohokam culture art — shells etched with fermented saguaro juice which acted like an acid on the parts of the shell that had not been coated with wax or pitch.
{{Information |Description= Hohokam shells etched with fermented saguaro juice which acted like an acid on the parts of the shell that had not been coated with wax or pitch |Source= Uploaded from : http://www.nps.gov/archive/tuma/hohokam.html |Date= 9 oct
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