Jacuzzi Brothers were founded in 1915 by seven Italian brothers from Casarsa della Delizia in Northern Italy, led by Giocondo Jacuzzi and Candido Jacuzzi. The company made wooden propellers under military contracts, based at 2043 San Pablo Avenue, Berkeley, California. In 1920, the brothers also dabbled briefly with aircraft design and manufacture, with a single-seat monoplane and a seven-seat cabin monoplane. Both aircraft were noted for their use of laminated wood products for fuselage manufacture, but were essentially unsuccessful, with only one of each type being built. In 1921, Giocondo Jacuzzi, a pilot, and two company employees were killed when one of their planes crashed in Modesto. By 1923, the company was styled as Jacuzzi Bros Propellers, with headquarters at 1450 San Pablo Ave.