Fresh from a local estate that had hundreds of radios, this is a vintage tube radio loop antenna - named the Duo-Spiral Loop, made by Radio Units, Inc. Maywood, Illinois.  The antenna is in good condition for its age, still intact, but there is a break on the right arm that has been glued and repaired.  The break does not impair the antenna (see photos).  The antenna has an arm on the bottom that would assist in reorienting it.  The left arm is a little loose, but can be tightened up.  The wire is present and intact.  The antenna stands about 33.5" tall and wide.  Great looking early antenna that would be a fine addition to your collection.  In order to ensure safe delivery the antenna will be double boxed.  Do not hesitate to make an offer all will be considered.