Like 2
coins ancient b to roman republican imperial sow series denarius rrc 121 2

Denomination: Denarius
Era: C. 209-195 BC
Metal:  AR
Obverse: Helmeted head of Roma R,;  X behind. Border of dots
Reverse:  Dioscuri on horseback right, each holding spear, star above each head; "Sow" below; ROMA in  3line frame.    Mint: Rome (?)
Weight: 3.36 g
Reference: RRC 121/2

Provenance:  NAC 125, Lot 376, June 24, 2021 Ex Sternberg XXI, 1988, 241 and NAC 73, 2013, Student and his Mentor part II, 38 sales.

Very rare. Reverse slightly off-centre, otherwise good extremely fine with lovely reflective surfaces. Trace of undertype on both obverse and reverse.  Note the 2nd border on the lower edge (beaded), and the  raised area in front of Roma's obverse face, also some hint of undertype below truncation. 

Sammlung : Symbols -Early anonymous Roman silver coins with symbols and Mintmarks

robot killer