An apparatus for supporting a sign element on a fixture includes a left side support member and a right side support member with each of the support members being separated from the other and being free standing. Each support member includes a support surface and an engagement surface that is oriented substantially transverse to the support surface. A substantially linear side groove is located along a length of the engagement surface of each of the left and right support members. A left side base and a right side base are provided on which a respective one of the support members is mounted. Preferably the bases each have a projection extending into a recess formed in a housing of the support member for engaging a wall of the housing.