Watch List notes:

SICILY. Katane. Circa 450-430 BC. Litra (Silver, 12 mm, 0.86 g, 2 h). Bald and bearded head of Silenos to right. Rev. KAT-ANE Thunderbolt with wings and volutes above; at the middle, gorytos. Auctiones 29, 12 June 2003, 509 (same dies). Cf. Myron 23 and SNG ANS 1238. Attractive and struck in good silver. Very fine.
From the John Everett Duke Collection, ex Waddell Auction II, 12 September 1987, 65.