Silver, 33.2mm diameter, 14.56 grams.  LVD· XV· D·G· FR· ET NAV· REX His head left, harp below.  Rv. SIT NOMEN DOMINI BENEDICTVM + 1742 around crowned arms between laurel branches, I below.  Directeur's mark harp, graveur's mark Greek cross.  Edge: DOMINE SALVUM FAC REGEM   Gadoury 314. Thimonier —.  Rare. Does not appear to be published.   Struck over another coin. Pleasing old cabinet toning, Good Very Fine