The Libbey baker's Basics 2-Piece glass deep pie plate value pack is pure, Simple, and transparent. Watch through its thick, Clear walls to ensure that your pie, tart, or Quiche bakes evenly. Then you can serve directly from the attractive, see-through deep pie plate and store leftovers in it later. If youâve ever sipped from a glass, odds are youâve already Met Libbey. We rank as the top glassware manufacturer in the Americas and one of the largest tableware suppliers in the world. As the runaway leader, we are setting new standards for stability, strength, and growth opportunity. We believe every occasion â big and small â is an opportunity to celebrate life.