The notice for visually perceptible copies should contain all the
following three elements:
1. _The symbol_ (the letter C in a circle), or the word "Copyright," or
the abbreviation "Copr."; and
2. _The year of first publication_ of the work. In the case of
compilations or derivative works incorporating previously published
material, the year date of first publication of the compilation or
derivative work is sufficient. The year date may be omitted where a
pictorial, graphic, or sculptural work, with accompanying textual
matter, if any, is reproduced in or on greeting cards, postcards,
stationery, jewelry, dolls, toys, or any useful article; and
3. _The name of the owner of copyright_ in the work, or an abbreviation
by which the name can be recognized, or a generally known alternative
designation of the owner.