Provided that if it is proved that the contravention was committed with the intention of communicating to any foreign State any information, document, sketch, plan, model, or knowledge acquired, made or taken or with the intention of facilitating the communication at a future time of information to a foreign State any information, document, sketch, plan, model or knowledge acquired, made or taken or with the intention of facilitating the communication at a future time of information to a foreign State, he shall be guilty of a felony, and on conviction on indictment be liable to penal servitude for life or for any term not less than three years, and this proviso shall have effect and be construed as if it were part of the Official Secrets Act, 1889. (3) Every order under this section shall have effect as if enacted in this Act, but as soon as may be after it is made shall be laid before each House of Parliament, and if an address is presented to His Majesty by either House of Parliament within the next subsequent twenty-one days on which that House has sat next after any such order came into force, praying that the order may be annulled, His Majesty may annul the order and it shall thenceforth be void, without prejudice to the validity of anything previously done thereunder. QUALIFICATIONS BY OWNING AIRCRAFT 2—An aircraft shall not be deemed to be a British aircraft unless owned wholly by persons of the following descriptions (in this Act referred to as persons qualified to be owners of British aircraft), namely:— (_a_) Natural-born British subjects; (_b_) Persons naturalised by or in pursuance of an Act of Parliament of the United Kingdom, or by or in pursuance of an Act or Ordinance of the proper legislative authority in a British possession; (_c_) Persons made denizens by letters of denization; (_d_) Bodies corporate established under and subject to the laws in force in some part of His Majesty’s dominions and having their principal place of business in those dominions, [all of whose directors and shareholders come under one of the aforementioned heads]: Provided that any person who either— (1) being a natural-born British subject has taken the oath of allegiance to a foreign Sovereign or State or has otherwise become a citizen or subject of a foreign State; or (2) has been naturalised or made a denizen as aforesaid; shall not be qualified to be an owner of a British aircraft, unless after taking the said oath or becoming a citizen or subject of a foreign State, or on or after being naturalised or made a denizen as aforesaid, he has taken the oath of allegiance to His Majesty the King and is during the time he is owner of the aircraft either resident in His Majesty’s dominions or a partner in a firm actually carrying on business in His Majesty’s dominions. REGISTRATION OF BRITISH AIRCRAFT 3—(1) Every British aircraft shall be registered in such manner as the Board of Trade may by regulations prescribe: