In 1970, the ISO (International Standards Organization) designed the specification for these glasses. At that time, they formed a panel of professional wine tasters to advise them on the ideal tasting glass for all professional wine tastings. Specifically, this panel included the infamous Michael Broadbent MW.  Then in 1972, this glass, also known as the INAO glass, received its ISO standard. Now, the INAO, which is the Institut National des Appelations d’Orgine de France, recommends this professional tasting glass.