Paragraph 2 F1F2

The identity card shall be uniform throughout the territory of each High Contracting Party and, as far as possible, of the same type for all Parties to the conflict. The Parties to the conflict may be guided by the single-language model shown in Figure 1. At the outbreak of hostilities, they shall transmit to each other a specimen of the model they are using, if such model differs from that shown in Figure 1. The identity card shall be made out, if possible, in duplicate, one copy being kept by the issuing authority, which should maintain control of the cards which it has issued.