World War II patches; Cheyenne possessions; Lincoln note; Civil War Fabric

Whether two patches that feature a symbol of a bird dropping a bomb are from a World War II unit; if a neckpiece and leggings belonged to Chief Black Kettle, a Cheyenne leader; whether a President Lincoln-signed note is authentic. Also: A tattered piece of red fabric is linked to a pivotal moment in the U.S. Civil War.