1751-C Sou Marque. Caen Mint. Vlack-68. Rarity-7. AU-55 (PCGS).32.0 grains. An engaging piece with full silvering to minimally toned, light silver-gray surfaces. There is some softness to the obverse, especially at lower-left center and in isolated peripheral areas, but all major features on both sides are fully appreciable, and most are bold. With minimal planchet roughness to overall smooth-looking surfaces.PCGS# 141002.From the Sydney F. Martin Collection. Earlier ex Jeff Rock.