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					Originally Posted by sbfinley  Great addition. I didn't realize pc backs were that difficult in relation to these series as they are quite plentiful in other series. Were they a single year issue like the 62 and 63 stat backs? | 
	
 Yes, 1955. And, there are two variations of the postcard back.  There is also the Dad's Cookies, which is a bear.  And the Pittsburgh Exhibits, with two variations.  I owned the only card graded of one of them and now own one of three of the other.  Wish I hadn't sold the one of one, but the price was right.