Links to related information on other sites:
The Care and Preservation of Historical Iron
http://www.thehenryford.org/explore/artifacts/iron.asp
Linking the Past (armor)
http://www.si.edu/mci/english/research/past_projects/link_past.html
Save Iowa's Civil War Monument Foundation: Canon Restoration
http://members.aol.com/grandarmy/page183.htm
Archaeological Iron Storage Research Project: A Summary
http://oi.uchicago.edu/museum/lab/iron_storage.html