Watch List notes:

ROMAN EMPIRE. Constantine II as caesar, 316-337. Solidus 320-325, Ticinum . Obv. FL IVL CONSTANTINVS IVN NOB C. laureate, draped and cuirassed bust right. Rev. PRINCIPI IVVENTVTIS. Prince in military dress standing right, holding globe and transverse sceptre; SMT in exergue. RIC Cf. 181; Dep. 18/3. AU. 4.33 g. Nice AU
Very rare probably one of the finest known.