If you want to know anything about Ike dollars try jmscoins. The guy that has that site has a registered set with PCGS on Ikes. He considers himself an Ike dollar expert. He seams to know everything about those coins. I've met him in person and asked him tons of questions just for the fun of it and he knows all the answers. Just fun to try to trick him up though. I've recently purchased a two headed Ike magicians coin and just waiting for the next time I see him at a coin show to see what he says. Go to that web site and ask him all kinds of questions. He is a really nice guy and will answer all your questions.
Here's a very interesting site for the 1972 Esinhower variety types www.supercoin.com Jazzcoins Joe:whistle: