Curious why the grade has a + after it?
I am not sure, maybe MinerJones or Anonymousminer would help with this?
But logically it should be the grade between 67 and 68?
https://www.pcgs.com/gradesPlus Grades
"Plus Grades" exhibit exceptional eye appeal for the grade and constitute the top 30% of the coins in the grade.
Only XF-45 through MS/PR-68 are eligible for Plus grades. Numerically, this includes 45, 50, 53, 55, 58, 62, 63, 64, 65, 66, 67, & 68.