Copyright Office2018-07-032018-07-031957-06PUB-028-10-002http://hdl.handle.net/20.500.11867/81872 sheets 16.5 x 11 inch, secured booklet style. Printed recto and verso. Copyright expired and unrenewed, per US Copyright Office."7. DURATION OF STATUTORY COPYRIGHT. The first term of statutory copyright runs for twenty-eight years. The term begins on the date the work is published with the notice of copyright, or, in the case of unpublished works registered in the Copyright Office, on the date of such registration. A copyright may be renewed for a second term of twenty-eight years, provided an application for renewal is made to the Copyright Office and duly registered during the last year of the original twenty-eight year term, which is measured from the exact date on which the original copyright began. For information concerning the procedure for filing a renewal application, request Circular No. 15."No Known Copyright The organization that has made the Item available reasonably believes that the Item is not restricted by copyright or related rights, but a conclusive determination could not be made. Please refer to the organization that has made the Item available for more information. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use.General Information on Copyright.