San Andrés
...that some experts believe a cylinder seal from the prehistoric San Andrés site is evidence for an Olmec writing system?
...that some experts believe a <a href="./Cylinder_seal" id="mwCrg" rel="mw:WikiLink" title="Cylinder seal">cylinder seal</a> <i id="mwCrk">(pictured)</i> from the prehistoric <b id="mwCro"><a href="./San_Andrés_(Mesoamerican_site)" id="mwCrs" rel="mw:WikiLink" title="San Andrés (Mesoamerican site)">San Andrés</a></b> site is evidence for an <a class="mw-redirect" href="./Olmec" id="mwCrw" rel="mw:WikiLink" title="Olmec">Olmec</a> <a href="./Writing_system" id="mwCr0" rel="mw:WikiLink" title="Writing system">writing system</a>?