This coin pendant , bearing the image of the Emperor Constans , Reigned from 337 - 350 A.D , the coin was struck in copper, Set in a Frame of 18 Kt Yellow and White Gold . The youngest son of Constantine the Great , Constans was proclaimed caesar by his father. OBVERSE : diademed bust R, D N CONSTANS P F AVG. REVERSE : emperor in boat steered by Victory L, FEL TEMP REPARATIO, BSIS-dot . Mint: Struck at the mint of Rome. Pendant Size: 2,9 cms x 2,9 cms = 1,16 inches x 1,16 inches without the link