Watch List notes:

ACHAIA, Achaian League. Elis. Circa 86-50 BC. AR Triobol – Hemidrachm (16mm, 2.34 g, 3h). Laureate head of Zeus right / Achaian League monogram; monogram above, FA to left, monogram to right, thunderbolt below; all within wreath. Benner 46; BCD Peloponnesos 682 var. (upper monogram); HGC 5, 539. Well struck; attractive deep iridescent tone. In NGC encapsulation 5872733-067, graded AU, Strike: 5/5, Surface:5/5.

From the Robert W. Bartlett Bequest Sold for the Benefit of the American Numismatic Society, purchased from London Coin Galleries, Mission Viejo, CA, February 1982.