Watch List notes:

Napoli, Carlo VI (1707-1734), Mezza Piastra, 1730; AR, (g 12,85; mm 34; h 6); CAROL VI D G ROM IMPE, bust r., at l. IMF/A, below G.G, Rv. UTRIUS SIC HIERUSAL, coronated coat of arms. P/R 4; MIR 319.
Very rare. Old cabinet tone. Usual sctraches of die at obverse. Extremely fine