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In page Rackett:

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The inventor of the rackett is unknown. The first historical mention can be found in German sources Wurttemberg inventories of 1576 (listed as a Raggett) and the Graz inventory of 1590 (listed as Rogetten).[1] Early paintings of the Munich Court band and a carved cabinet by Christof Angermair depict a single rackett being played in a mixed consort of other instruments. Prior to the late seventeenth century, the rackett had a cylindrical bore and the reed was surrounded by a pirouette. The later baroque rackett had an expanding pseudo-conical bore and was blown through a coiled crook inserted into the top of the instrument. A separate bell joint is added to extend the sounding length.