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$10 colonial New York currency, dated September 2, 1775.
$4 continental currency, dated February 26, 1777.
This blank check was signed by President John F. Kennedy and carried by his Secret Service detail during his fateful trip to Dallas, where he was assassinated in 1963.
Small-size silver certificate issued by the US in North Africa during World War II so the American troops would have access to US currency while fighting in this unstable area.