Web site: https://www.ancient-jewellery.com/
This is an ancient Roman silver Antoninianus of Emperor Gordian III, minted at Rome between 243 - 244 AD
Obverse: IMP GORDIANVS PIVS FEL AVG "Emperor Gordianus, Pious and Happy August" radiate draped bust left
Reverse: PROVID AVG "Providence of the emperor (Augustus)" Providentia standing left holding wand over the globe at her feet, sceptre in the left hand.
DENOMINATION: Antoninianus = 2 Denarii
DATE: 238 - 244 AD (minted at Rome in 243 - 244 AD)
SIZE: 21.7mm diameter
WEIGHT: 4.67 grams
ATTRIBUTION: SR-8654, RIC-148
PROVENANCE: Formerly in a private collection. Budapest, Hungary.