The Tobias Mattstedt Menu Collection (approximately 1990-2009) is comprised of menus documenting the restaurant industry in Las Vegas, Nevada, the United States, and internationally. The menus include restaurants located in Las Vegas casinos, most notably the MGM Grand, located in Las Vegas. Included in the MGM Grand menus are restaurants such as the Pearl, Tabu Ultra Lounge, and the Grand Wok and Sushi Bar. The collection also documents menus collected by Mattstedt that are not affiliated with the MGM Corporation. These include menus located in the United States, especially Hawaii, including menus from the restaurants Olio!, Nob Hill, Diego's, and Sea Blue. The collection also includes international menus with a focus on Asian countries. The material provides insight into menu design, food culture, and the Las Vegas service industry.

The Sister Klaryta Antoszewska Photograph Collection (1977-1991) consists of photographic slides that depict various Nevada, United States, and international nuclear test protests. The collection includes images of Sister Klaryta Antoszewska and Sister Rosemary Lynch, as well as images of the Lenten Desert Experience and numerous protests at the Nevada Test Site. Also included are images of nuclear testing, soldiers, and anti-nuclear testing promotional materials.

The Howard Hughes Professional and Aeronautical Photographs contain black-and-white photographs of businessman and entrepreneur Howard Hughes and his companies from 1916 to 1997. The photographs primarily depict Hughes alongside his aircraft, including the XF-11 prototype reconnaissance plane and the HK-1 Hercules, better known as the "Spruce Goose" or "Flying Boat." The photographs also cover the companies owned by Hughes, including Hughes Tool Company, Hughes Aircraft Company, Hughes Electronics Corporation, and RKO Pictures.