Problem to be solved: to provide an identification body, an article management system and a pin number management system capable of easily confirming an article contained in a container.Identification label 10 of the present inventionAn identification label 10 capable of attaching the article g to a housing B capable of accommodating the articleHaving a printable substrate 12Substrate 12An identification code 20 capable of being read by optical reading meansIdentification information 22 corresponding to the identification code 20 is provided.The identification code 20 is prepared by a plurality of typesIdentification information 22 corresponding to a plurality of types of identification codes 20 is provided.Diagram
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