This document has been assembled to satisfy ISO requirements for
references in the ISO/IEC 15424 document. The AIM Plessey, Anker and
MSI Codes archive document, which is a compendium of four historical
documents and a research paper, will be that reference. This document
could also serve as a definitive reference for manufacturers who wish to
support the symbologies with equipment designed to print or read these
This document includes example symbols with the three different
termination bar sizes and describes the technical distinctions between
Plessey, Anker and MSI symbologies.
AIM Historical Reference documents are provided as a guide to
individuals and companies that require information about legacy bar
code symbologies that have not been issued as specifications by AIM or a
national or international body.
These documents are compilations of known technical references for
these symbologies. These historical references may not contain
comprehensive descriptions and may at times include information that
conflicts with other included reference documents. Any omissions or
conflicts reflect the uncertain nature of the symbology's specifications.
Historically, variations on some proprietary symbologies have been
created. When these variations exist, they are included in the historical
AIM assumes no responsibility for omissions in, or conflicts between, the
This document is not an official AIM symbology specification and is
provided for historical reference only.