Elvis Presley‘s estate is suing an auction firm for selling the singer’s “irreplaceable” artifacts.

Presley died nearly 50 years ago, but his legacy has left many fans eager to own his paraphernalia. Elvis Presley Enterprises said it made “clear and repeated demands” that GWS Auctions, a firm that has previously sold Presley’s things without problems, return the items. Instead, it was “ignored.”