Rare High Grade Roman Coin Pendant Emperor Gallienus & 18 Chain COA & Gift Box. 18mm gilded Sterling CV. Publius Licinius Egnatius Gallienus was Roman emperor with his father Valerian from 253 to 260 and alone from 260 to 268. He ruled during the Crisis of the Third Century that nearly caused the collapse of the empire. Certificate of Authenticity included This item has Carefully hand crafted to last. The authentic Roman coin has been set into a gold filled high quality sterling silver bezel pendant that will last many lifetimes. The coinage is a genuine bronze Antoninus of the Roman empire struck during the decline of the Roman empire. Hello To Australia & the United Kingdom. Lots of other jewelry and neat old coins for sale. Feel free to check out our other coins and coin jewelry. HonoredAllies At this time.