0031-0330 irl.qxd 2.3.2009 14:19 Page 51 WOUNDED AND SICK 51 distinctive emblem. This card shall be water-resistant and of such size that it can be carried in the pocket. It shall be worded in the national language, shall mention at least the surname and first names, the date of birth, the rank and the service number of the bearer, and shall state in what capacity he is entitled to the protection of the present Convention. The card shall bear the photograph of the owner and also either his signature or his finger-prints or both. It shall be embossed with the stamp of the military authority. The identity card shall be uniform throughout the same armed forces and, as far as possible, of a similar type in the armed forces of the High Contracting Parties. The Parties to the conflict may be guided by the model which is annexed, by way of example, to the present Convention. They shall inform each other, at the outbreak of hostilities, of the model they are using. Identity cards should be made out, if possible, at least in duplicate, one copy being kept by the home country. In no circumstances may the said personnel be deprived of their insignia or identity cards nor of the right to wear the armlet. In case of loss, they shall be entitled to receive duplicates of the cards and to have the insignia replaced. ART. 41. — The personnel designated in Article 25 shall wear, but only while carrying out medical duties, a white armlet bearing in its centre the distinctive sign in miniature; the armlet shall be issued and stamped by the military authority. Military identity documents to be carried by this type of personnel shall specify what special training they have received, the temporary character of the duties they are engaged upon, and their authority for wearing the armlet. Identification of auxiliary personnel ART. 42. — The distinctive flag of the Convention shall be hoisted only over such medical units and establishments as are entitled to be respected under the Convention, and only with the consent of the military authorities. In mobile units, as in fixed establishments, it may be accompanied by the national flag of the Party to the conflict to which the unit or establishment belongs. Nevertheless, medical units which have fallen into the hands of the enemy shall not fly any flag other than that of the Convention. Parties to the conflict shall take the necessary steps, in so far as military considerations permit, to make the distinctive emblems indicating medical units and establishments clearly visible to the enemy land, air or naval forces, in order to obviate the possibility of any hostile action. Marking of medical units and establishments