Section 1. Any provision of law to the contrary notwithstanding, FAR Corporation is hereby granted a franchise to establish, operate and maintain a messenger and delivery express service of messages, packages and parcels, at regular intervals or, in special or rush emergency cases, through all hours of the day, for a period of twenty-five years from the approval of this Act: Provided,
However , That the said corporation shall not receive or deliver matter described in Sections nineteen hundred fifty-four and nineteen hundred fifty-five of the Revised Administrative Code, and any absolutely non-mailable matter received by it shall be forfeited to the Government, and any matter unmailable under Section nineteen hundred fifty-five of the said Code received by it shall be returned when practicable to the person who deposited it but need not be delivered to the addressee: Provided, further, That any willful violation of the foregoing proviso by the said corporation shall be sufficient cause for the repeal of this franchise: And, Provided, finally, That the Postmaster General, under such rules as he may prescribe with the approval of the Secretary of Public Works and Communications, shall exercise supervision over said corporation for the purpose of preventing any violation of the foregoing provisos and the Postal Law and regulations.