656 PUBLIC LAWS-CH. 391-JULY 30, 1947 [61 STAT. of facilities essential for such compliance, he may by proclamation grant such extension of time as he may deem appropriate for the fulfillment of such conditions or formalities by authors, copyright owners, or proprietors who are citizens of the United States or who are nationals of countries which accord substantially equal treatment in this respect to authors, copyright owners, or proprietors who are Nonliability. citizens of the United States: Providedfurther, That no liability shall attach under this title for lawful uses made or acts done prior to the effective date of such proclamation in connection with such works, or in respect to the continuance for one year subsequent to such date of any business undertaking or enterprise lawfully undertaken prior to such date involving expenditure or contractual obligation in connec- tion with the exploitation, production, reproduction, circulation, or Termination operformance of any such work. proclamation, etc. The President may at any time terminate any proclamation author- ized herein or any part thereof or suspend or extend its operation for such period or periods of time as in his judgment the interests of the United States may require. § 10. PUBLICATION OF WORK WITH NOTICE.- Any person entitled thereto by this title may secure copyright for his work by publication thereof with the notice of copyright required by this title; and such notice shall be affixed to each copy thereof published or offered for sale in the United States by authority of the copyright proprietor, except in the case of books seeking ad interim protection under section 22 of this title. § 11. REGISTRATION OF CLAIM AND ISSUANCE OF CERTIFICATE.-Such person may obtain registration of his claim to copyright by complying with the provisions of this title, including the deposit of copies, and ot, p 666 upon such compliance the Register of Copyrights shall issue to him the certificates provided for in section 209 of this title. § 12. WORKS NOT REPRODUCED FOR SALE. -Copyright may also be had of the works of an author, of which copies are not reproduced for sale, by the deposit, with claim of copyright, of one complete copy of such work if it be a lecture or similar production or a dramatic, musical, or dramatico-musical composition; of a title and description, with one print taken from each scene or act, if the work be a motion- picture photoplay; of a photographic print if the work be a photo- graph; of a title and description, with not less than two prints taken from different sections of a complete motion picture, if the work be a motion picture other than a photoplay; or of a photograph or other identifying reproduction thereof, if it be a work of art or a plastic work or drawing. But the privilege of registration of copyright secured hereunder shall not exempt the copyright proprietor from the deposit of copies, under sections 13 and 14 of this title, where the work is later reproduced in copies for sale. § 13. DEPosrr OF COPIES AFTER PUBLICATION; ACTION OR PROCEEDING FOR INFRINGEMENT.- After copyright has been secured by publication of the work with the notice of copyright as provided in section 10 of this title, there shall be promptly deposited in the copyright office or in the mail addressed to the Register of Copyrights, Washington, Dis- trict of Columbia, two complete copies of the best edition thereof then published, or if the work is by an author who is a citizen or subject of a foreign state or nation and has been published in a foreign country, one complete copy of the best edition then published in such foreign country, which copies or copy, if the work be a book or periodical, shall have been produced in accordance with the manufacturing pro- visions specified in section 16 of this title; or if such work be a contri- bution to a periodical, for which contribution special registration is
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