Pink Floyd’s iconic album The Dark Side of the Moon has sold over 45 million copies worldwide. The band’s most commercially successful album and arguably one of the best ever was Certified Gold in 1973 for over one million copies sold by the RIAA.

Now, one of those gold records is set to be auctioned off by Nate D. Sanders this week. The gold plaque was owned by founding band member and keyboardist Richard Wright, who passed away in 2008. The plaque reads, “PRESENTED TO / RICHARD WRIGHT / TO COMMEMORATE THE SALE OF MORE THAN / ONE MILLION DOLLARS WORTH OF THE / HARVEST RECORDS / LONG-PLAYING RECORD ALBUM / ‘THE DARK SIDE OF THE MOON.”

Auction owner Nate Sanders stated, “Pink Floyd Memorabilia has been in great demand in recent months. Even the Victoria & Albert Museum in London is hosting a extremely popular retrospective of this iconic band.”

The RIAA award also comes with a letter from Wright’s second wife, Franka Wright, that testifies to the authenticity of the plaque. “I hope anyone that has any of Rick’s items enjoys them as much as I do,” she writes.

The record will head to auction on Thursday, June 22nd.