A carrier case for accommodating paper sheets, cards or the like having radio frequency data carriers attached thereto or watermarked therein. A device is provided for reading out information from the radio frequency data carriers while eliminating the need for externally removing the paper sheets, cards or the like having the radio frequency data carriers attached thereto or watermarked therein. The carrier case is provided therein with an opening for insertion of the data reading device, and is also provided with a movable divider plate. When it is desired to read out data from the radio frequency data carriers, the divider plate is tilted so that the data reading device can read out the data from the data carriers with a good sensitivity in a relationship contacted with the radio frequency data carriers or not contacted therewith.