Parma.
Ferdinand I, 1765-1802. Doppia 1787 S. Obv. FERDINANDVS I HISPANIAR INFANS. Bare head right. Rev. D G PARMÆ PLAC ET VASTAL DVX 1787. Farnese-Gonzaga-Bourbon coat of arms. KM 18a; Fr. 930. Gold. 7.14 g.
PCGS MS 64
Ex. Maison Palombo auction 13, 13 december 2014, lot 581.
Engraved by Giuseppe Siliprandi, mintmaster from 1784 to 1787.