Vintage Celluloid Hand Mirrors "French Ivory" or "Pyralin" Vanity Set

Set of 2 yellow butterscotch vintage celluloid hand-held mirrors, also known as French Ivory or Pyralin, likely dating from the early 1900s to 1930s, common items in ladies' vanity sets during the late 19th and early 20th centuries. The material is celluloid, an early plastic, often used as an ivory substitute. The larger mirror is marked with the word Ivortus. The mirrors feature ornate, dark monograms on the back that possibly read PSL and FBL. Collectible. Both mirrors show patina appropriate to their age, like discoloration of the plastic, dark spots on the mirrors, and missing coloring on the monograms. The smaller mirror seems to be missing a part that holds it in place so the glass is a little loose. The larger mirror is 11 inches long, 6 1/2 inches in diameter. The smaller mirror is 10 inches long, and 6 inches in diameter.