Abstract: A mailing envelope comprises a plurality of interconnected panel members forming a first pocket adapted for receiving a machine inserted enclosure therein, and a second pocket overlapping and smaller in width than the first pocket and adapted for receiving a hand inserted address card therein. A duplex closure flap for sealing said pocket has a perforation line extending from the flap inner edge to the flap outer edge and laterally divides the closure flap into two mutually separable portions, one of which is coincident with the insert opening of the second pocket. Each of said portions includes adhesive sealing means thereon whereby both pockets may be closed by sealing the other closure flap portion, the second pocket being resealably openable by tearingly separating said one closure flap portion from the other along the perforation line.

Abstract: An envelope for containing photographic prints and negatives in separate pockets comprising substantially rectangular front and back panels interconnected along three edges thereof forming a first pocket particularly adapted for containing photographic prints, and having an insert opening between the remaining edges of the panels. A center flap is connected to the remaining edge of the back panel along a fold line, and overlies a portion of the back panel. A patch member has a lower edge and at least one side edge thereof attached to the center flap forming a second pocket particularly adapted for containing photographic negatives, and having an insert opening along the two remaining edges of the patch. A closure flap is connected to the remaining edge of the front panel along a fold line and overlies the patch member when in a closed position.

Abstract: A multiple piece envelope arrangement is made from a single blank folded so that seal gum may be applied simultaneously upon the adjacent sealing flaps of separable pieces, thereby substantially reducing the cost of production.