The shoes where taken back in 2005 from the Judy Garland Museum. When thieves smashed the glass case leaving behind just one sequin. The FBI still hasn’t reviled how they got there hands on the shoes.
MGM studios made a few sets of Ruby Slippers for the filming of the Wizard of OZ. But we only know of 4 pairs remaining. The recently found set, the ones owned by Leonardo DiCaprio, the ones that Steven Spielberg own and the last pair is owned by a private collector.