9091 Kettle, 2 qt. 3.75 oz. by Richard Sapper for Alessi The 9091 was Alessi's first designer kettle, ushering in a long and successful tradition. The central element in the design is the brass whistle which, when the steam exits, produces a sound like a train whistle. Richard Sapper wanted to avoid the usual anxiety-g Alessi 9091 Kettle, 2 qt. 3.75 oz. by Richard Sapper for Alessi, accredited barware, kitchen, home décor, living and spa product designer for Amusespot online and retail in Las Vegas.