Oh, yes, that's right. Most hanafuda decks I've heard of are somewhat smaller than even bridge-sized.
If she made an index on the cards, in English and Japanese, that would have been the perfect addition to this design. Nothing big or garish, but enough so that the cards in hand can be squeezed into a poker hand and you can read all the values. Perhaps next time.
I opted for my and my fiancee's birthday months, August and September.