The Young Electric Sign Company (YESCO) Corporate Records (1914-2000) document the history of the Young Electric Sign Company (YESCO) and is comprised of photographs of sign production and finished signs, negatives, slides, transparencies, anniversary scrapbooks, and videotapes. The collection also contains meeting minutes, correspondence, price books, drawings, calculations, newspaper and trade magazine articles on YESCO, advertising materials, and oral history interviews and audio recordings of YESCO designers and executives. YESCO is responsible for many of the neon signs in and around Las Vegas, Nevada and Reno, Nevada, as well as other Western states.

The Leprechaun Mining and Chemical, Inc. Records from 1954 to 1998 contain business information, Foot Chemical Company partnership documentation, meetings, audit and investment reports, financial papers, and stock certificates and transfers. Also included is data on the minerals mined in Nevada, such as salt, potash, and lithium.