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The National Archives

@uknatarchives

Official archive of the UK government. Discover our online collections, research guides and educational resources, spanning 1000 years of history.

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linkhttp://www.nationalarchives.gov.uk calendar_today09-07-2009 09:30:16

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The National Archives
@uknatarchives

5 years ago

If you hold an old letter up to a lamp, you might see a filigree of light (in the shape of a crown, a coat of arms or even a unicorn!) appearing in the paper. These are watermarks. Discover the complex, scientific techniques required to record watermarks: orlo.uk/Wrozd

If you hold an old letter up to a lamp, you might see a filigree of light (in the shape of a crown, a coat of arms or even a unicorn!) appearing in the paper. These are watermarks. Discover the complex, scientific techniques required to record watermarks: orlo.uk/Wrozd