One counterfeit has a black outline around Pete's white hat that isn't there on an original - see this 12 year old article
http://www.psacard.com/articles/arti...tml?artid=1867 for additional info. Also, if you have the card in hand hold it up to a strong light and look at the reverse side - see the silhouettes of the 4 player circles? If so, the stock is too thin and you've got a fake... You'll also want to do a google search for "counterfeit 1963 rose" and read through the pages returned in the result.