Watch List notes:

SICILY. Katane. Circa 415/3-403/2 BC. Tetras or Trionkion (Silver, 8.06 mm, 0.13 g). Laureate head of Apollo right. Rev. Kithara; three pellets (mark of value) around. Boehringer, Kataneische, Ts 16. HGC 2, 595. BMC -. Edge chipped. Good Fine. Very Rare.

From a Swiss collection, formed before 2005.