Third magistrate attested in Athens in 136/135 BC [issue 29]. Again attested as third magistrate in 130/129 BC [issue 35]:
See M. Thompson, The New Style Silver Coinage of Athens (1961) nos. 337, 344 and nos. 404-406, 411 / issues 29 and 35 (p.
568); C. Habicht, Zu den Münzmagistraten der Silberprägung des Neuen Stils, Chiron 21, 1991, p. 5 (136/135 and 139/129 BC);
Prosopographia Attica 6509; P. M. Fraser – E. Matthews, A Lexicon of Greek Personal Names II Attica (1994) p. 207 s. v. Herakon,
no. 1; W. Leschhorn, Lexikon der Aufschriften auf griechischen Münzen II (2009) p. 536 s. v. Herakon.