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How National Portrait Gallery Preserves Early Photography

Adam Savage’s Tested · 9:49

24,617 views · 1,500 likes · Jun 25, 2026

The daguerreotype is the first publicly available photographic process, creating a single, unique image on a silver-coated plate and giving us a glimpse at such historic figures as Abraham Lincoln and even John Quincy Adams. But they're extremely fragile, with air and moisture threatening to erase these images forever. At the National Portrait Gallery, photographs conservator Christina Finlayson w…

The daguerreotype is the first publicly available photographic process, creating a single, unique image on a silver-coated plate and giving us a glimpse at such historic figures as Abraham Lincoln and even John Quincy Adams. But they're extremely fragile, with air and moisture threatening to erase these images forever. At the National Portrait Gallery, photographs conservator Christina Finlayson w…

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