If the documents have several copies only the top copy whichis the original shall be printed with the guilloche-pattern The Community and Thailand shall cooperate closely tobackground. This copy shall be clearly marked as 'original' implement the provisions of the Agreement . To this end ,and the other copies as 'copy'. Only the original shall be contacts and exchanges of views ( including on technicalaccepted by the competent authorities in the Community as matters ) shall be facilitated by both Parties .being valid for the purposes of export to the Community inaccordance with the arrangements established by theAgreement . Article 182. Each document shall bear a standardized serial In order to ensure the proper application of this Agreement ,number , whether or not printed , by which it can beidentified . the Community and Thailand shall assist each other in checking the authenticity and accuracy of export licences and certificates of origin issued under this Protocol .This number shall be composed of the following elements :— two letters identifying Thailand as follows : TH , Article 19— two letters identifying country of destination as follows : Thailand shall send the Commission of the European BL = Benelux Communities the names and addresses of the governmental DE = Federal Republic of Germany authorities competent for the issue and verification of export