1966 Jefferson Nickel. SMS. MS-68 Cameo (NGC).Untoned brilliant white surfaces allow full appreciation of a boldly cameoed finish. A fully struck, visually appealing strike and condition rarity from the brief SMS Jefferson nickel series of the mid 1960s.PCGS# 84198. NGC ID: 27AE.NGC Census: 52; 2 finer in this category (both MS-69 Cameo).