What type of violins did jascha heifetz play?

Jascha Heifetz primarily played on a Stradivarius violin, specifically the 1714 "ex-Lipinski" Stradivarius, which is one of the most celebrated violins in history. He also performed on a Guarneri del Gesù, another highly esteemed violin maker. Heifetz's choice of instruments contributed to his unique sound and exceptional technique, solidifying his reputation as one of the greatest violinists of all time.