Chibi Maruko-chan Mini Playing Cards Showa Note Size: Approximately 6.8 cm tall, 4.3 cm wide Total number of cards: 54 (including 2 jokers) I believe this was made around the end of the Showa era or the beginning of the Heisei era. It has been stored without being used much, so the playing cards are in almost pristine condition with very little wear and tear. The cardboard backing of the case has some slight scratches and discoloration.