Web site: https://www.ancient-jewellery.com/
This is a nice excavated ancient Roman silver Siliqua, of emperor Julian II, dating to 360 - 363 A.D. This coin is in at least EF condition (in my opinion), with a superb portrait and bold lustrous reverse.
FL CL IVLIANVS P P AVG, rosette-diademed, draped, and cuirassed bust right
VOTIS V MVLTIS X in four lines within wreath. Mintmark LVG
This coin was minted at Lugdunum (Lyons in France) mint mark LVG. It had traveled across the English Channel,being discovered by a metal detectorist in Wiltshire.
DATE: 360 - 363 A.D.
MINTMARK: LVG (Lugdunum, Lyons, France)
SIZE: 17mm dia
WEIGHT: 1.57 grams
Attribution: RSC 163†c.