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US Constitution Historic Preservation Vault Sealing
Published 26 months ago
Trailer: This film shows first-hand how the constitution was sealed in its vault of preservation. A very complicated process, it requires several layers of glass and framework to be constructed before it can be sealed. Once sealed, deterioration is... more
Trailer: This film shows first-hand how the constitution was sealed in its vault of preservation. A very complicated process, it requires several layers of glass and framework to be constructed before it can be sealed. Once sealed, deterioration is prevented by monitoring the amount of gases inside the vault. See the full length at: www.qualityinformationpublishers.com less
- Category: News & Politics
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War of 1812 History Film w/ USS Constitution (Old Ironsides)
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