Watch List notes:

ITALY, Apuli (ducato). Roberto il Guiscardo. 1059-1085. Æ Follaro (23mm, 2.60 g, 5h). Salerno mint. Struck 1076-1085. Crowned facing bust holding cross and double-orb / City view with arcades and towers. Cappelli 36 (Anonymous); Travaini, Monetazione type 32; MEC 14, 71-3; Biaggi 2247 (Uncertain ruler); CNG 96, lot 1312 (hammer $2300). VF, dark green patina with earthen deposits. Rare.

Ex Kunst und Münzen FPL 58 (May 1986), no. 511.