File:Jefferson Airplane.jpg

"A notice for the collective work will not serve as the notice for advertisements inserted on behalf of persons other than the copyright owner of the collective work. These advertisements should each bear a separate notice in the name of the copyright owner of the advertisement."
 * RCA issued the ad without any copyright marks or notations.
 * US Copyright Office page 3-magazines are collective works (PDF)
 * Copyright for Billboard magazine would not affect this non-marked RCA Records ad. RCA didn't label their ad as under copyright.