(225 ILCS 655/6) (from Ch. 111, par. 507)
    Sec. 6. A certificate of registration must be prominently displayed at each place of business of the registrant. Where the registrant conducts business at more than one address, duplicate certificates shall be issued. Each certificate shall be signed by the Director and be issued under the seal of the Department.
(Source: P.A. 78-794.)