Is the 1964-65 Topps Hockey pack from the first or second series?
I remember first series packs being sold for ten cents in my neck of the woods so those would be the ones with no price on the wrapper. Although the quantity of cards may have been increased from four to either five or six per pack (my memory is hazy on this detail), this made the 1964-65 Tall Boy issue relatively unpopular with kids. O-Pee-Chee therefore adjusted its pricing strategy for the second series. Second series packs would therefore be the ones marked 5 cents (if I'm correct in my thinking).