SPAIN. Carlos III. 1759-1788. Copper maravedi. 1.08 gm. 15 mm. Madrid. 1770. Bust right; CAROLUS III D G HISP REX around, 1770 below, crowned M in field / Castles and lions in the angles of a cross within a wreath. KM 405.1. Uncirculated; choice (with PCGS MS64BN tag) (extremely rare thus).