ARABIA. Circa 2nd-1st Century BC. Billon or Æ Tetradrachm (13.86 gm; 23 mm). Crude head of Herakles right, wearing lion skin (also resembles Zeus-Ammon) / Zeus-Shamash seated left, holding horse and sceptre; tree to left, ?, in left field, monogram in right field, legend behind sceptre. Arnold-Biucchi, "Arabian Alexanders", in Mnemata: Papers in honor of Nancy M. Waggoner, 25; Potts, Pre Islamic Coinage of Eastern Arabia 408. Nice dark brown-reddish patina. Choice EF. Rare.