Kings of Macedonia, Demetrios I (306-283), Tetradrachm, Uncertain mint, c. 291-290 BC; AR (g 16,75; mm 28; h 1); Diademed and horned head r., Rv. BAΣIΛEΩΣ ΔHMHTPIOY, Poseidon Pelagaios seated l. on rock, holding aphlaston and trident; on l., Phrygian helmet. Newell 136 (unrecorded dies); Classical Numismatic Group -Triton XVII (7 January 2014), lot 171. Rare. Cabinet tone, minor die shift on obverse, anyway extremely fine.