The need to cope with enormous amounts of material has occasionally resulted in the sacrifice of original materials that have been published, based on the rule of thumb that once published, these materials are of less value to a repository than those materials that are not published. One of the most famous collections of drawings produced in the late 1800s, the dinosaur type specimen illustrations of the O.C. Marsh Collection, almost fell victim to this practice. This paper chronicles the collaborative efforts taken to preserve this historic collection; outlines the integrated approach to preservation that was used (including a discussion of the various types of surveys, folder lists, prototypical housing materials and storage, and duplication procedures); and discusses how the seemingly contradictory needs of access and preservation may be resolved through interdisciplinary dialogue. -- ICCROM