Bell & Howell 35mm Master 40 Slide Trays are vintage, straight-style slide magazines designed exclusively for organizing, protecting, and projecting 2x2-inch cardboard or plastic-mounted 35mm photographic slides. Released primarily during the 1960s, these distinctive turquoise or gray plastic trays are widely sought after today by film photography enthusiasts and families digitalizing legacy media.
Key Specifications & Design FeaturesCapacity: Each individual tray holds up to 40 slides.
Micro-Mount System: Trays utilize a unique, thin plastic frame/insert mechanism for each slot. The projector's automatic feeding arm engages directly with these rigid protective inserts rather than grabbing the fragile cardboard or plastic slide mount itself, preventing slide jams and surface damage.
Stackable Storage: Formatted with a interlocking "cube" style outer shell, allowing multiple trays to be cleanly stacked or boxed together to block out dust and ambient moisture.Index Card Lid: Most original lids include a built-in numbered paper index grid on the underside to catalog and name your slides in sequence
