Thinking about getting into slabbed Kennedy Half errors for 1964. I am looking at Proof Philly issues, but Denver might be doable also. What kind of errors for that year have you collected, and what are the most desirable ones? I can't get top grades for every error, don't have that kind of $, but think PR67 or PR68 are good examples. I mostly do NGC but PCGS will work too. What say you? Joel
