Athena and "two opposing curvilinear objects"

SYRIA: SELEUCIS & PIERIA. Antiochia ad Orontem. Domitian. Æ 30. A.D. 81-96. Obv: (IMPDOMITI)-ANVSCA(ESARAVG?). Laureate head left; countermark (1) on shoulder, countermark (2) to right of bust. Rev: S C within laurel-wreath. Ref: BMC 249(?). Axis: 360°. Weight: 13.10 g. Note: Probably struck early in the reign of Domitian. CM(1): Athena standing right, holding spear and shield, in rectangular punch, 4 x 5.5 mm. Howgego 245 (139 pcs). Note: May be an imperial countermark due to Domitian's association with Athena/Minerva, likely applied between A.D. 83-96 in Antioch. CM(2): Two opposing curvilinear motifs containing pellets, in circular punch with serrated border, circa 11 mm. Howgego 504i (5 pcs). Note: Applied sometime between the early years of the reign of Domitian and the end of the reign of Antoninus Pius, and may have been applied at Edessa due to some of the other specimens also bearing countermarks of that city. Collection Automan.