I assume these were not sent for grading and were already slabbed. Although c.g.s. SUPPOSEDLY knock the coin down on the grading for edge knocks.Surely if noticeable would show on the pictures taken before slabbing.
hi mark. The mistake (if it is one) has been made by three different graders . I was led to believe they are looked at by a grader and the details put on a system. This is then repeated twice by two other graders and if one grader rejects a coin that the coin is given a yellow ticket. If they are slightly different the lowest grade is attributed. This means all three graders put the coin at 80. Makes me have doubts in this instance. Pete.
In my opinion the obverse 78/80 and the reverse 60. overall does not make any better than 65 e/f. Not knowing anything about half crowns i may be way off.