Watch List notes:

Phoenicia, Tyre. 126 B.C.-A.D. 65. AR 1/2 shekel (21 mm, 6.37 g, 12 h). Dated CY 159 (A.D. 33/4). Crucifixion year. Laureate bust of Melkart right / TYPIOY IEP[AΣ] KAI AΣ[YΛOY], eagle standing left on prow, palm over far wing; date (PNΘ) above club to left, KP and monogram to right, Phoenician "b" between legs. Rouvier -; RPC 4693; BMC -. aVF, porous but with clear date. 

The half shekels of the year of the Crucifixion are extremely rare.