The plate wall was popular in the 1950s and ’60s, often mounted on rustic wooden shelves in kitchens or displayed in formal dining rooms. More than 60 years later, this vintage staple is having another moment, recently showing up in both Gwyneth Paltrow’s Montecito, California, home and designer J.J. Martin’s Milan flat. Even Kate Middleton and Prince William have a wall of porcelain plates decorating their residence.