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Conserve O Gram 84National Park ServiceCare and Indenti31cation of Ob Conserve O Gram 84National Park ServiceCare and Indenti31cation of Ob

Conserve O Gram 84National Park ServiceCare and Indenti31cation of Ob - PowerPoint Presentation

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Conserve O Gram 84National Park ServiceCare and Indenti31cation of Ob - PPT Presentation

Figure 1 Severely degraded cellulose nitrate comb shows crazing cracking and discoloration circled Internal and or surface crazing is often the 31rst sign of degradation and precedes brittleness an ID: 894551

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Conserve O Gram 84National Park ServiceCare and Indenti31cation of Ob - pdf download. Figure 1 Severely degraded cellulose nitrate comb shows crazing cracking and discoloration circled Internal and or surface crazing is often the 31rst sign of degradation and precedes brittleness an ID: 894551.. https://www.docslides.com/slides/conserve-o-gram-84national-park-servicecare-and-indenti31cation-of-ob.html