Watch List notes:

Constantine I (307-337). AE Follis, Siscia mint, 313-315. Obv. IMP CONSTANTINVS PF AVG. Laureate head right. Rev. IOVI CONSERVATORI AVGG NN. Jupiter standing left, leaning on sceptre, holding Victory on globe; eagle with wreath to left; in field, to right, B. In exergue, SIS. RIC VII 3. AE. g. 3.93 mm. 23.00 RR. Very rare. Sharply struck, from a spectacular reverse die. Nice green-brown patina, with reddish highlights. EF.