No idea, but it seems like it's intentionally made so that no matter the orientation of the deck (face up or face down), the first card you see (not counting jokers and ad cards) will always de an ace. The two suits of those aces are just the two most liked suits (ace and hearths).

The curious part is that this order doesn't mean anything for card players, in fact it would probably be better for most games if the decks where printed in random order, but for magicians this order is really important for many effects. For example, if you perfectly shuffle the deck 8 times it will go back to it's original order.