Gold, 4.41g, 20mm. Constantinople mint.
Dumbarton Oaks (photographer)
<a rel="nofollow" class="external text" href="https://www.doaks.org/resources/online-exhibits/byzantine-emperors-on-coins/sixth-seventh-centuries-emperors-491-717/solidus-of-justin-ii-565-578">Dumbarton Oaks</a>