Watch List notes:

Egypt, Alexandria. Trajan. A.D. 98-117. BI tetradrachm (24.20 mm, 11.96 g, 11 h). Struck A.D. 111/12. AVT TPAIAN CЄB ΓЄPM ΔAKIK, laureate head of Trajan right / The serpent Agothadaemon standing erect to right; kerykion on left, grain-ear on right // LIЄ (= yr. 15 = A.D. 111/12). Emmett 369; Curtis 312. Fine, tan patina with lots of green deposits in recesses and fields; obverse rough. 

Ex Wayne C. Phillips sale 166.