TYPE Byzantine Empire, Heraclius (610-641 AD), bronze follis, Thessalonika mint, D. Oaks class 3, struck 627-8 AD, 5.34g DESCRIPTION . Obv: Facing figures of Heraclius, Heraclius Constantine and Martina, each holding gl. cr., partial Latin legend around, two crosses to sides Rev: Denomination (M = 40 nummi), ANNO to left, off. B and Greek mint mark THES below, regnal year 18 to right, cross above REFERENCE: SB 825, DO 148 GRADING: VF, side figures weaker, brown patina, scarce ORDER INFO: B3094, $90 Scarcer Thessalonika issue of the "imperial family" follis, with above average detail (esp. obverse). The regnal year technically reads 19, but in the context of date sequences used at the officina B of this mint, it becomes obvious that the "G" is used to denote 5 rather the customary 6, thus making the present year 18.