To automatically read storage information of an RFID tag attached to each of various articles each time an operator deals with those articles.

A reader is attached to a working supply which an operator wears or uses, and when the operator approaches the RFID tag of an article in the case of handling with the article, the reader automatically reads, from the RFID tag attached to the article, at least information unique to the RFID tag. The reader includes an antenna and a reader body, and the antenna is attached to the working supply, and the reader body may be externally arranged so as to be attachable/detachable to/from the working supply. The antenna may be incorporated in the reader body. The reader includes a writer capable of appending at least history information of a conveyance process to the write-once type IC chip of the RFID tag attached to the article.