Mourning ring containing plaited lock of George Washington's (1731-1799) hair under crystal [realia].

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America, late 18th or early 19th century.
Ring of gold, surmounted by curved circular black enamel mount with crystal.
Curved crystal: approx. 9/16 inches (14 mm) diameter
Gift of Mrs. Vincent Astor.
AZ147
Inscription: 
Inscribed at perimeter, "GEN. WASHINGTON OB. DEC.ER 1799 AE.68*"
Provenance: 
Presented by Mrs. Washington to Major William Jackson; Captain Vincent Astor; Mrs. Vincent Astor.
Notes: 

Cover of round parchment box inscribed in pen and brown ink, "Ring/containing the/hair of Genl George/Washington, the hai/presented to Major/William Jackson/by his widow Mrs/Martha Washington/after General/Washington death at/Mount Vernon". (Note: "Death" written in different ink).

Century: 
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