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In the original Billboard issue, there is no copyright notice on either the advertisement or as part of its caption. A copyright notice is described as follows:
United States Copyright Office pages 1–2: In general, for works first published before March 1, 1989, the copyright owner was required to place an effective notice on all publicly distributed "visually perceptible" copies. A visually perceptible copy is one that can be seen or read, either directly or with the aid of a machine.
Copyright notice is a statement placed on copies or phonorecords of a work to inform the public that a copyright owner is claiming ownership of it. A notice consists of three elements that generally appear as a single continuous statement:
- The copyright symbol © (or for phonorecords, the symbol ℗); the word "copyright"; or the abbreviation "copr.";
- The year of first publication of the work; and
- The name of the copyright owner.
