Ae Dichalkon Alexandria Egypt 12mm x 10mm 1.66gms.
Laureate bust of Trajan right.
Hem Hem crown of Harpocrates LIZ = regnal year 17= 113/4 AD.
Crown with tripple Atef (ostrich feathers) upon twisted rams horns.
Hem Hem means to cry out (A battle horn).
Desert patina.