An anti-counterfeit medium in which identification data is recorded, comprising: a retardation layer having birefringence; and a reflection layer, the identification data is divided into a plurality of partial images, and a plurality of transparent areas which correspond to the plurality of partial images are disposed adjacent to each other in a same plane so as to form the retardation layer, the plurality of transparent areas having optical axes which are oriented in different directions from each other in a rotation direction, and the identification data includes biometric information, wherein first identification data which is biometric information and second identification data which is non-biometric information are recorded in the retardation layer; and the anti-counterfeit medium is configured to be capable of individually displaying the first and second identification data, wherein part of the first identification data and part of the second identification data are recorded in at least one transparent area of the plurality of transparent areas, characterized in that: the retardation layer includes first, second and third transparent areas having optical axes oriented in different directions from each other, the optical axes being oriented in this order in the rotation direction, wherein a fourth transparent area is further provided adjacent to the first transparent area and opposite to the second transparent area with respect to the first transparent area in the rotation direction of the optical axis; a first image which corresponds to a portion of the second identification data which is not overlapped with the first identification data is recorded in the first transparent area; a second image which corresponds to a portion which does not contain the first identification data and the second identification data is recorded in the second transparent area; a third image which corresponds to a portion of the first identification data which is not overlapped with the second identification data is recorded in the third transparent area; and a fourth image which corresponds to a portion in which the first identification data and the second identification data are overlapped is recorded in the fourth transparent area. a retardation layer having birefringence; and a reflection layer, the identification data is divided into a plurality of partial images, and a plurality of transparent areas which correspond to the plurality of partial images are disposed adjacent to each other in a same plane so as to form the retardation layer, the plurality of transparent areas having optical axes which are oriented in different directions from each other in a rotation direction, and the identification data includes biometric information, wherein first identification data which is biometric information and second identification data which is non-biometric information are recorded in the retardation layer; and the anti-counterfeit medium is configured to be capable of individually displaying the first and second identification data, wherein part of the first identification data and part of the second identification data are recorded in at least one transparent area of the plurality of transparent areas, characterized in that: the retardation layer includes first, second and third transparent areas having optical axes oriented in different directions from each other, the optical axes being oriented in this order in the rotation direction, wherein a fourth transparent area is further provided adjacent to the first transparent area and opposite to the second transparent area with respect to the first transparent area in the rotation direction of the optical axis; a first image which corresponds to a portion of the second identification data which is not overlapped with the first identification data is recorded in the first transparent area; a second image which corresponds to a portion which does not contain the first identification data and the second identification data is recorded in the second transparent area; a third image which corresponds to a portion of the first identification data which is not overlapped with the second identification data is recorded in the third transparent area; and a fourth image which corresponds to a portion in which the first identification data and the second identification data are overlapped is recorded in the fourth transparent area. the retardation layer includes first, second and third transparent areas having optical axes oriented in different directions from each other, the optical axes being oriented in this order in the rotation direction, wherein a fourth transparent area is further provided adjacent to the first transparent area and opposite to the second transparent area with respect to the first transparent area in the rotation direction of the optical axis; a first image which corresponds to a portion of the second identification data which is not overlapped with the first identification data is recorded in the first transparent area; a second image which corresponds to a portion which does not contain the first identification data and the second identification data is recorded in the second transparent area; a third image which corresponds to a portion of the first identification data which is not overlapped with the second identification data is recorded in the third transparent area; and a fourth image which corresponds to a portion in which the first identification data and the second identification data are overlapped is recorded in the fourth transparent area.