Struck in Antioch, this bronze coin has a bearded man on obverse. The eyes are clear, but the general condition didn't allow me to assure that I have Macrinus at hand. Please try to guess with me. It weighs only 3.43 g. Thanks..
Looks like it to me. The portrait looks like Macrinus and you can see a bit of the obverse legend. Compare it to this Antiochian Macrinus from CNG's archives: https://www.cngcoins.com/Coin.aspx?CoinID=250874 Is it a die match to this CNG coin? I"m not sure. Maybe? Your coin's reverse is too far gone to determine the identifying markings but the large SC isn't shaped exactly like the CNG coin, so it's not a reverse match.
Thanks. I think the nearest match to my coin is BMC 386. It's smaller than all the coins shown above. Measuring only 17 mm., it has even a lesser weight than BMC 386. Indeed, so many endless varieties in ancient coins.
Your coin has significant corrosion and metal loss so I don't think the size and weight difference is meaningful.
Here's one from my collection to compare it to: Macrinus, Augustus AD 217-218 Roman provincial Æ 19 mm, 3.80 g, 12:00 Syria: Seleucis and Pieria, Antioch ad Orontem Obv: ΑVΤ Κ Μ Ο C ΜΑΚΡΙΝΟC CЄ, laureate and cuirassed bust right Rev: Large SC, Δ/Є above and beneath; all within laurel wreath interrupted by star above Refs: SGI 2949; BMC 20. 198,385; SNG Cop. 233; McAlee 728