Collection consists of the Executive Committee Meeting Minutes of the Celluloid Company, 1890 to 1905, two bound volumes of patents obtained by John Wesley Hyatt, including one for the first celluloid billiard ball and several other patents for billiard ball coatings and knife-handles; a booklet on Hyatt's acceptance of the Perkin Medal, 1914; six photographic portraits; and a relief sculpture of the John Wesley Hyatt commemorative award.