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A letter from a Civil War soldier who wanted to lead a unit of blacks; fabric from an airplane apparently signed by Charles Lindbergh and helicopter inventor Igor Sikorsky; the story behind the 1950s-era "Negro Romance" comic book.
A propeller that may be from a WWII-era drone; an inscribed, wooden club that may have been given to Teddy Roosevelt; a letter that may be from Clara Barton in which she expresses concern about a soldier.
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He demonstrates the bukkehorn, the tagelharpa and the lyre