View of lions in den at Detroit Zoo. Printed on front: "234, the lion den in Zoological Park, Detroit, Mich., 8A-H416." Printed on back: "Lion den. The lion den, of man-made rocks, in which full grown lions roam at will behind neither cages nor bars. United News Co., 24 West Jefferson Avenue, Detroit, Mich. Genuine Curteich-Chicago 'C.T. Art-Colortone' post card (reg. U.S. Pat. Off.)"
