Macedonian Kingdom. Antigonus Doson. 229-222/1 BC. Tetradrachm, 16.95g (5h). , c. 227-225 BC. Obv: Head of Poseidon right, hair bound with marine plant. Rx: ΒΑΣΙΛΕΩΣ ΑΝΤΙΓΟΝΟΥ Apollo, naked, seated left on prow, holding bow in right hand; monogram below. SNG Alpha Bank 1046-1047. SNG Berry 362. Ex Lanz 153, 12 December 2011, lot 197. Ex PGB Collection, purchased in 1968 from Frederick Knobloch.