Watch List notes:

Alexius I, Comnenus (1081-1118). AE Follis, Thessalonica mint. Obv. Bust of Alexius facing, wearing crown and loros and holding cruciform sceptre and globus cruciger. Rev. Jewelled cross, standing on two steps, X at centre; in the angles, C-Φ/AΛ-Δ. Hendy, pl. 3.2. BMC 55. Sear 1910. AE. g. 3.64 mm. 23.00 RRR. Extremely rare. Superb untouched earthen dark green patina. VF. Apparently the first example offered for sale.