AMERICAN  FREEZE-DRY OPERATIONS INC. ARTIFACT RESTORATION COATED PAPER: PRIVATE COLLECTION OF S. DILLON RIPLEY Frozen within 5 hours after water damage occured, sustained no adhesion. IT'S NEVER TOO LATE: ARCHAELOGICAL CONSERVATION LAB Wooden and leather artifacts from a  sunken ship after being submerged for more than 200 years. PRIVATE COLLECTION: 18th Century Hebrew volumes in which water damge occured several days prior to being frozen. Note cockling and spine damage. WOODEN ARTIFACTS: Oaken bucket staves, wrapped in cheesecloth on scale. Specimens are weighed after each freeze-drying cycle. When weight-loss ends, specimens are dry. OLDIE, BUT GOODIE: HARVARD UNIVERSITY Freeze-drying of archival material has been very successful. HEBREW VOLUMES: Discovered to have been wet for more than a month, resulting in mold, cockling and severe damage to binding.