Watch List notes:

Theodosius II, AD 402-450. Gold Solidus (4.46 g). Mint of Constantinople, ca. AD 415. Helmeted, pearl-diademed and cuirassed bust of the emperor to r., holding spear and shield with horseman and enemy motif. Reverse: GLORIA REI PVBLICAE, Roma and Constantinopolis seated facing, supporting between them a shield inscribed, VOT / XV / MVLT / XX; in l. field, star. In exergue, CONOB. RIC 207; MIRB 5; S-21139. Boldly struck and fully lustrorus. A superb specimen. Mint State. Estimated Value $2,000 - UP
This type was issued in celebration of Theodosius' fifteenth anniversary, or quindecennalia.