Abstract: An open-top case is provided wherein an inside portion of the open-top case is separated by partition plates in a lateral manner, whereby several bank note storage portions are provided in the open-top case. Several openings are provided in an upper region of the partition plates. Accordingly, money handling for bank notes can be done easily even if the bank notes are small sized. Because an upper region of each of the bank notes are exposed at the openings regardless of the size thereof, it is easy to touch the bank notes at the openings even for small sized bank notes. Also the bank notes are reliably supported by the partition plates since it is not necessary to provide a wide opening in the partition plates for easy access to bank notes.

Abstract: A mechanism prevents a memory card from erroneous mounting and dismounting on and from an apparatus having a card insertion hole and performing a predetermined processing on memory unit of the card when the card is mounted into the hole to a predetermined position. The mechanism comprises a memory card provided with a recess, and an engagement member movable between a projecting position, at which the member is projected in a locus of movement of the card from an inlet of the hole to the predetermined position, and a retracted position, at which the member is spaced apart from the locus. The engagement member is interlocked with an operation switch for a circuit for performing a predetermined process to the memory unit, so that the member is brought to the projecting position when the switch is turned on and to the retracted position when the switch is turned off.