IMP CAE C VIB VOLVSIANO AVG

Laureate, draped and cuirassed bust of Volusian right.

AETERNITAS AVGG

Aeternitas standing left, holding a phoenix with the right hand and raising her clothes with her left hand.

Photos from coin sold as modern fake by London Ancient Coins, link to the sale: https://www.acsearch.info/search.html?id=3221531, link to their website: https://www.vcoins.com/en/stores/london_ancient_coins-89/ancient-coins/Default.aspx?#!/Home.

Imitation of the RIC 154 (Aureus) here transformed into denarius. Informations of weight and diameter, die axis: 1h, from London Ancient Coins.