Almost Uncirculated Roman Egypt Alexandria Emperor billon silver tetradrachm coin.
Struck in Maximinus' 2nd regnal year (denoted by Greek letter B) = 235/236 CE.
NGC Certified to AU, Strike 5/5, Surface 2/5.
Seldom encountered reverse type with bust of Selene (Moon) Goddess.
Obverse: laureate, draped, cuirassed bust of Maximinus I facing right.
Reverse: bust of Selene facing right with moon crescent to right, L B (date) to left.