Re: Question on "enders" please advise.
As others have said, you recognize it after awhile...however, seeing as that is of no help to you... I would describe the typical look of a reverse 40% Kennedy as a slightly "whiter", yet tarnished patina as opposed to the shiny nickel clad halves surrounding it, and the 90% Kennedy's even more so...after you've seen a few you truly will recognize it...I still get fooled after 4 years , but not very often...I'd take $20 bets to pick one out of a lineup all day long.
HH,
CD