1758-A Sou Marque. Paris Mint. Vlack-42. Rarity-5. Stop After Heron. First Semester. AU-50 (PCGS).35.1 grains. Fairly even golden-gray patina to surfaces that retain nearly full silvering. Lustrous for the grade with good centering, overall bold detail, and no significant flaws.PCGS# 158604.From the Sydney F. Martin Collection. Earlier from our (Stacks) sale of the Robert A. Vlack Collection, January 2008 Americana Sale, lot 5373.