In 1927, Charles Lindbergh made the first nonstop flight between NYC and Paris in his plane the Spirit of St. Louis. This raft accompanied him on this solo flight as a safety precaution. It was never used. Upon his return, Lindbergh donated this raft and its repair kit along with hundreds of other artefacts to the Missouri Historical Society.
The raft is made of a rubber-coated canvas and over the years, a noticeable white, fatty bloom has appeared over both the obverse and reverse surfaces. This is from an additive in the rubber that is used to protect it from dry rot. This layer is aesthetically distracting and limits our full understanding of the deterioration of the raft overall. Thus, it was decided that this substance must be removed. Cleaning this product off is not detrimental to the object and is expected to come back over time. However, removing it now allows conservators to track the deterioration of the raft through this product over time.
The raft took over 60 hours across 4 weeks to clean, this is a small subset of the work performed