Constantine V with Leo III, Reverse Legend Error. Solidus; Constantine V with Leo III, Reverse Legend Error; 741-745 AD, Constantinople, Solidus, 4.43g. Rev. legend var. of Berk-225, Sear-1550, and DO-1d1: the final IN in Constantine's name are reversed (NI) by engraver's error. Obv: 6 - LEO - N P A MUL' Crowned frontal bust of Leo III (the emperor's deceased father) with short beard, holding cross potent inwards and akakia. Rx: 6 N CO - N - STANTNIUS (sic, NI for IN) Crowned frontal bust of Constantine V with short beard, holding cross potent outwards and akakia.. EF