The International Standard Wine Number or ISWN, similar to the ISBN for books, is a coding scheme intended to give a unique identifier for each wine worldwide. The ISWN system has a consistent unique code for each wine producer (ISWN-P), each wine brand or product (ISWN-W), each vintage variant of a wine product (ISWN-V), and the bottle variants (ISWN-B). The ISWN is allocated by the ISWN Organization on the basis of a global reference database of wine producers and wines worldwide. The database is improved through wine producers updating their own data with the ISWN Manager module. The ISWN Organization is a Non-profit organization sponsored by the wine industry.
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