Fr-6; KM-53. <strong>VERY RARE</strong> especially so in this state of preservation and problem free. The rarest date for the type. Reported mintage of just 20 pieces. The only piece certified at this grade level with just one piece certified finer at either NGC or PCGS (NGC AU-58). Nice strike with light attractive tone and nice eye appeal. NGC AU-55. From the Richard Stuart Collection.