Scope and Contents From the Collection: The Robert C. Hansen Performing Arts Collection dates from circa 100 to 2020 (bulk 1800s-2000s) and contains programs, heralds, guidebooks and periodicals, playbooks, sheet music and songbooks, correspondence and autographs, original costume designs and scenery designs, posters, photographs, postcards, tradecards, scrapbooks, subject files, and other visual materials and memorabilia which document the history of the performing arts, mainly theatre, in many countries, mainly the United...