Ziggy Gruber presenting his personal collection of old deli menus and family photos. Ziggy's grandfather, Max Gruber, partnered with his brothers-in-law, Morris and Izzy Rappaport, to open The Rialto Deli in 1927, the first Jewish deli on Broadway in New York. Gruber’s family has owned establishments in New York, Los Angeles and Houston over the course of nearly 100 years.