Watch List notes:

Crispus (Caesar, 317-326). AE Follis, Siscia mint. D/ IVL CRISPVS NOB C. Laureate head right. R/ CAESARVM NOSTRORVM around VOT/X in two lines in laurel wreath. In exergue, ASIS radiate crown. RIC 181. AE. g. 3.00 mm. 18.00 A superb example. Lovely glossy dark green patina. EF.

Compass dot on reverse: it is the centering point made by the compass in the die, for describing the linear border or the circle used to align the border dots.