Not a lot is known by Hebryzelmis other than that he was the King of Odrysae and the Athenians conferred honors upon him (according to Hermes , xxvi. 453). The references only note a “bearded head l.” while later cataloguers suggest it is the king Hebryzlmis himself that is represented on the coin. It is not such a far-fetched idea but we should note the difference. The type was first noted in the 1894 edition of the Numismatic Chronicle when the British Museum acquired the type. They called it a “unique” coin at the time and of “considerable interest and importance”. According to the article it was unknown until 1889, when the archaeologist Lolling published an inscription found on the Acropolis in Athens. Here there was a decree where the Athenians conferred honors on the king. The inscription on the Acropolis was then fixed at c. 386-5 BC. 

No other coins at that time were known of this ruler but Svoronos recognized something of this ruler (at least coins inscribed with EBPY) in 1890. Wroth, in the 1891 Numismatic Chronicle noted this “fortunate discovery” by Svoronos and this made a previously uncertain bronze attributed by Imhoof to a known Thracian ruler!