BZ117403. Bronze follis, DOC II-2 60, Anastasi 220, Wroth BMC 61, Tolstoi 78, Ratto 1663, Morrisson BnF 14/Sy/AE/01, Hahn MIB 104, Sommer 13.28, SBCV 1207, aVF, green patina, overstruck on a cut older coin, 5.964g, 29.1mm, 180^o, Sicily, Syracuse mint, diademed, helmeted, and cuirassed bust facing, beardless, globus cruciger in right hand; reverse M between Heraclius (on left) and Tiberius, each stands facing wearing a crown with cross and chlamys, each holds globus cruciger, SLC below above, SCL in exergue ; scarce

 

Constantine IV, Pogonatus should be credited with saving Europe from Muslim conquest. The great siege of Constantinople by the caliph Muawiyah I, beginning in 674, lasted four years. The newly invented 'Greek Fire' made the city impregnable.