Watch List notes:

Heraclius and Heraclius Constantine. Follis; Heraclius and Heraclius Constantine; 610-641 AD. Seleucia, Year 6 or 7=615/6 or 616/7 AD, Overstruck Follis, 12.46g. Berk-574, MIB-192, Sear-844. Obv: Facing busts of the two emperors, the father larger than his son. On upper r. A/N/N/O, surviving from the rev. legend of the undertype. Rx: Large M, between A/N/N/O on l. and G or GI on r.; christogram above, illegible officina letter below; mintmark [SELISU] in exergue is off flan. On upper r. D N, surviving from the obv. legend of the undertype.Overstruck on an earlier follis. VF