Watch List notes:

ACHAIA, Achaian League. Elis. Circa 175-168 BC. AR Triobol – Hemidrachm (15mm, 2.36 g, 3h). Laureate head of Zeus right / Monogram of the Achaian League; A to left, FA above, N to right; all within laurel wreath. Benner 11; BCD Peleponnesos 665.2; cf. HGC 5, 534-540. Toned, obverse strike a bit weak. VF.

From the Professor Charles Schulz Collection. Ex Coin Galleries (1 June 1979), lot 286.