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seal
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seal The 12th-century seal of Conrad III is in the Bayerisches Nationalmuseum in Munich, Germany. Babylonian seal
Discover
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John F. Kennedy as a boy with his family
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Leonardo da Vinci (1452-1519), Italian Renaissance painter from Florence. Engraving by Cosomo Colombini (d. 1812) after a Leonardo self portrait. Ca. 1500.
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New York NY/ USA- November 23, 2018 Hordes of shoppers throng the Macy's Herald Square flagship store in New York looking for bargains on the day after Thanksgiving, Black Friday.
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Los Angeles Police Department wanted flyer on Elizabeth Short, aka the "Black Dahlia," who was brutally murdered in January 1947. The FBI supported the Los Angeles Police Department in the case, including by identifying Short through her fingerprints that
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Super Typhoon Noru over the western tropical Pacific Ocean as observed by the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA Aqua satellite July 31 2017
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Mona Lisa, oil on wood panel by Leonardo da Vinci, c. 1503-06; in the Louvre, Paris, France. 77 x 53 cm.
Why Is the Mona Lisa So Famous?
seal
seal Wax seal on an envelope.

seal

authentication
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Related Topics:
great seal
signet
seal engraving
kangōfu
privy seal

seal, in documentation, an impression made by the impact of a hard engraved surface on a softer material such as wax or clay, producing a device in relief. Seals have been used since remote antiquity to authenticate documents. The study of seals, known as sigillography, is a major historical discipline.

This article was most recently revised and updated by Amy Tikkanen.