This lot includes 4 empty vintage View-Master reel sleeves in blue color, made of cardboard and paper by Sawyer. The sleeves are from the 1950s and are designed for storing stereoview reels. The sleeves are original and come in a set of 4, perfect for collectors of vintage stereoscope and stereoview items. Each sleeve features the classic design associated with View-Master products and adds a touch of history to any collection.