AuthorityIdentifies the issuing power. The authority can be "pretended" when the name or the portrait of X is on the coin but he/she was not the issuing power. It can also be "uncertain" when there is no mention of X on the coin but he/she was the issuing power according to the historical sources:
Chronology
FromIdentifies the initial date in a range assigned in a numismatic context. 250 BCE toIdentifies the final date in a range assigned in a numismatic context.. 220 BCE
Hellenistic 323-30 BCperiodTime period of the numismatic object.
Physical description
MetalThe physical material (usually metal) from which an object is made.: Bronze
FromIdentifies the initial date in a range assigned in a numismatic context. 261 BCE toIdentifies the final date in a range assigned in a numismatic context.. 246 BCE
Hellenistic 323-30 BCperiodTime period of the numismatic object.
^Hoover, Oliver D. (2017), Handbook of Coins of Macedon and Its Neighbors. 3. Part 2: Thrace, Skythia, and Taurike, Sixth to First Centuries BC, Lancaster-London, xix, 232 p.
^Houghton, Arthur - Lorber, Catharine (2002), Seleucid coins : a comprehensive catalogue. Part 1, Seleucus I through Antiochus III, New York - Lancaster - London, 2 v. (xxxviii, 488 p. + 300 p.), 101 pl.