Civil War Bridge - Clearing some newly purchased property along the Broad River in Columbia, South Carolina, the owner discovered evidence of an old bridge abutment. He searched the river for clues and thinks he may have pinpointed the location where Confederates burned the bridge to thwart General Sherman's attempt to cross into Columbia to continue his scorch-and-burn campaign. HISTORY DETECTIVES host Elyse Luray goes to Columbia to examine the evidence and see if this discovery will redraw the maps of the Civil War. Scottsboro Boys Stamp - A contributor bought an inconspicuous black and white stamp at an outdoor market in Scottsboro, Alabama. "Save the Scottsboro Boys" is printed on the stamp above nine black faces behind prison bars and two arms prying the bars apart. One arm bears the tattoo "ILD." On the bottom of the stamp is printed "one cent." The Scottsboro Boys were falsely accused and convicted of raping two white girls in 1931 on a train near Scottsboro, Alabama. It took several appeals, two cases before the U.S. Supreme Court and nearly two decades before all nine finally walked free. How is the stamp connected to this landmark civil rights case? HISTORY DETECTIVES host Gwendolyn Wright consults with a stamp expert to discover how a tiny penny stamp could make a difference in the young men's defense effort. Duke Ellington Plates - A New York man took a stroll through Harlem 20 years ago and stumbled across boxes of sheet music in a dumpster. Among the paper scores were metal sheets that look like printing plates for "Take the A Train," written by Billy Strayhorn and performed by jazz great Duke Ellington. Scratches and ink smudges mar the plates, signs that someone might have run these through a printing press, but there's no apparent copyright stamp. HISTORY DETECTIVES host Tukufu Zuberi sets out to find the story behind these plates and to determine the role they played in this jazz classic.