It was established in 1958 , with the preamble stating : Having decided upon the adoption of certain proposals with regard to the reciprocal or international recognition of seafarers ' national identity cards , ... An identity document issued under the convention or its successor is colloquially called a '' ' Seaman 's Book ' '' or a '' ' Seaman 's Card '' '
its successor
Seafarers' Identity Documents Convention (Revised), 2003
Seafarers' Identity Documents Convention, 1958