Cap badge with lyre, eagle, and flags

This badge is made of an unknown metal and cannot be accurately identified as belonging to any particular military unit. However, the presence of an eagle and American flags suggests that this badge is associated with the United States. The flags are flanking a lyre or harp, upon which the eagle is perched. At the center of the badge are the letters, "R. C. B." stamped into the metal, with a wreath below. The letters may stand for a particular military unit, or they may be the owner's initials. The lyre is a symbol commonly found in the badges and insignia of military bands, suggesting that this badge may be associated with a U.S. military band.