<Li> O: Warner Bros. Records </Li> <Li> O: Alice Cooper (singer), who donated in memory of close friend and comedian Groucho Marx, and who joked that he would also donate an "O" from his last name </Li> <Li> D: Dennis Lidtke (businessman) donated in the name of Matthew Williams </Li> <P> The original 1923 sign was presumed to have been destroyed until 2005, when it was put up for sale on eBay by producer / entrepreneur Dan Bliss . It was sold to artist Bill Mack, who used the sheet metal as a medium to paint the likenesses of stars from the Golden Age of Hollywood . In August 2012, Mack constructed an exact replica of the letter H from the metal . On August 9, 2012, Herb Wesson and Tom LaBonge of the Los Angeles City Council presented Mack with a Certificate of Recognition for his restoration efforts and preservation of the iconic symbol of Hollywood history . </P>

When did the hollywood sign become a landmark