It was simple. All you did was make sure your mom bought only York peanut butter in 1961. A couple of jars if she had extra money. Then you pried off the inside of the cap and presto, you’ve got yourself another hockey card to fit in your little album.
There were 42 cards in that 1961-62 set, and although I once had both the cards and album, I don’t anymore. I’m assuming my mom, in a weak moment, tossed them. It’s hard to understand.