oll search of kennedy halves had this 64 jump out at me first color is more steel than silver(tarnish??) (cleaned ???) (just old and circulated ?) Like me oh well TMI .......Any thoughts the design apperars to be deeper in the coin but dont see any doubling its a d mint...any value or just an interesting coin ??? tried to copy a regular 64 for comparison purposes.. Thanks in advance for your time