The architectural drawings series contains architectural, mechanical, structural, and electrical drawings detailing consultant work Nat Hart performed for restaurants in locations such as Nevada, California, and Canada. The series includes architectural design drawings for restaurants owned by Nat Hart and Nat Hart's residence.
The menus series is comprised of restaurant, cafe, and hotel dining menus collected by Nat Hart from the 1950s through the 1990s. The series contains menus from Nat Hart's restaurants at Caesars Palace, Desert Inn Hotel and Casino, and the Boardwalk Regency in Atlantic City. Nat Hart collected menus from Florida, Oregon, Hawaii, and many other states. He also collected menus from Mexico, Germany, Hungary, Czechoslovakia, and China.
The food and beverage industry papers date from 1945 to 1994 and include design plans, menu plans, financial information, business proposals, and research from Nat Hart's work as a freelance consultant at Nat Hart and Associates and other professional work not associated with the Caesars World or MGM Desert Inn corporations.
The personal papers are comprised of documents, letters, and photographs of Nat Hart and his family. The series includes documents from both Nat and Sylvia Hart’s memberships in the Las Vegas Jewish service organization B’nai B’rith, and correspondence regarding the establishment of a scholarship in Nat Hart’s name at the University of Houston.