The records document the development of the first commercial atomic clocks by the National Company, Inc., (NATCO) of Malden, Massachusetts, a company known for producing specialized electronic equipment. The records include blueprints, technical drawings and schematics, technical and research reports, instruction manuals, photographs, and marketing materials.

A New York bookseller, Warshaw assembled this collection over nearly fifty years. The Warshaw Collection of Business Americana: Engineering forms part of the Warshaw Collection of Business Americana, Subseries 1.1: Subject Categories. The Subject Categories subseries is divided into 470 subject categories based on those created by Mr. Warshaw. These subject categories include topical subjects, types or forms of material, people, organizations, historical events, and other categories. An overview to the entire Warshaw collection is available here: Warshaw Collection of Business Americana

The papers of art historian and World War II Monuments Man Walter W. Horn measure 2.7 linear feet and date from 1908 to 1992, with the bulk of material dating from 1943 to 1950. Walter Horn taught art history at the University of California, Berkeley from 1938 to his retirement in 1974. During World War II, Horn served as Head of the U. S. Army Intelligence Unit of the Monuments, Fine Arts, and Archives Section (MFAA.) The papers contain biographical materials; professional correspondence; records documenting his service in the MFAA; administrative files relating to his work at the University of California, Berkeley; and scattered photographs.

The papers of art historian, curator, and educator Patricia Hills measure 23.1 linear feet and date from circa 1900-2015, bulk 1968-2009. Central to this collection are project files documenting professional work that resulted in lectures, publications, exhibitions, art history courses on numerous artists including Alice Neel, Jacob Lawrence, May Stevens, Rudolf Baranik, and John Singer Sargent. These files and files documenting Hills's tenure at the Whitney Museum of American Art include planning documents, research files, correspondence, manuscripts and accompanying publications, as well as other printed materials. The collection also contains correspondence with art historians, artists, curators, and others, notably Lawrence Alloway, Lowery Stokes Sims, Lucy R. Lippard, T.J. Clark, Leon Golub, and Donald Kuspit; professional files documenting grants and residencies awarded and consulting work; artist and subject files; other writings; and printed material. Membership and affiliation records document Hills' service to the profession, including Women's Caucus for Art and the Visual Culture/Art History Caucus of the American Studies Association.

Photographs, scrapbooks, and other materials documenting the career of Joe Adams, a Los Angeles radio announcer and movie and television actor, who later became Ray Charles's manager.

This collection contains a variety of periodicals, photographs, correspondence, business and advertising ephemera (corporate and non-profit, personal), organizational records and ephemera, created by, for, and in reaction to the Lesbian, Gay, Bisexual, Transgender (LGBT) community.

This collection consists of materials gathered by Angela Shaw during her time at Pan Am including eleven menus from various routes; a large 1992 wall calendar featuring color illustrations of areas serviced by Pan Am; two unused Travel Card passes; two unused luggage tags; an unused luggage identification label; thirty-three unused color post cards...

Theater plat book used at the Philadelphia Theater in Philadelphia, Pennsylvania showing stage plats for various productions.

The W. Atlee Burpee & Company records, dated circa 1873-1986, document the firm's business activities developing plant varieties and marketing and selling seeds. They include accounting records, seed trial records, seed contracts, sales records, inventories, office correspondence, seed catalogs, promotional and instructional materials, advertisements and advertising reports, contest letters, daybooks, photographs, reference materials, and other items relating to the company and some of its competitors.

Papers relating to the development of the flexible drinking straw, Friedman's manufacturing company, and Friedman's other inventions, such as an ice cream scoop, fountain pens, and household appliances.