ACHAIA, Achaian League. Patrai. Circa 175-168 BC. Tetrobol (Silver, 15 mm, 2.42 g, 1 h). Laureate head of Zeus to right. Rev. Monogram of the Achaian League; across field, Δ-I; below, trident to right; all within laurel wreath. Agrinion 278. BCD Peloponnesos 502. Benner 19. Clerk 187 ( Mantineia ). Extremely fine.