Watch List notes:

ITALY, Napoli (Regno). Carlo I di Spagna (Carlo V, Sacro Romano Impero). 1516-1554. AR Mezzo ducato (34mm, 14.90 g, 10h). Napoli (Naples) mint. Struck 1548-1544. Laureate and curiassed bust right; (IBR) to left) / Crowned double-headed eagle with crowned coat-of-arms on breast. MIR 135; Pannuti & Riccio 14. Slightly double struck, brightly cleaned surfaces. VF.

From the El Medina Collection.