The Collection of Roman Republican Coins of a Student and his Mentor Part III M. Calpurnius M. f. Frugi. Denarius 61, AR 3.91 g. Terminal bust of Mercury r., wearing winged diadem; behind, star / wreath. In r. field, dish. Rev. M·PISO M F / FRVGI Sacrificial knife and patera; all within wreath. Babelon Calpurnia 23. Sydenham 825. RBW 1505. Crawford 418/2b. Very rare. An almost invisible control mark on obverse, otherwise good very fine Privately purchased from Spink & Son in January 1972.