David,
There is a center in Philadelphia that would be ideal to restore and preserve the archival material you found. It is the Conservation Center for Art and Historic Artifacts. They do a lot of work for local and national museums and specialize in paper, textile, fiber and other architectural drawing formats as well as paintings and other historic items. They aren't cheap but they are the best I've come across. State of the art.
Here is their website
http://www.ccaha.org/index.php"Treatment services are available for drawings, prints, maps, posters, historic wallpaper, architectural drawings, musical scores, photographs, rare books, scrapbooks, manuscripts, and related materials such as parchment and papyrus.
CCAHA is equipped to handle treatment problems from the routine to the highly complex. Procedures available range from rehousing to stabilization of fragile material to aesthetic restoration of works of art or unique artifacts."
The other advantage to having the material worked on in Philadelphia is that the nation's largest flatbed scanner is in suburban Drexel Hill. You can have a high resolution scan of the routing map done without feeding it through rollers. We've had dozens of maps scanned and the process is completely non-invasive. If you need more information, please contact me on my cell 610.955.5686. Bring it out yourself and bring your clubs
