Envelope construction

An envelope, which comprises:

• a rectangular front panel defined by a pair of longer sides and a pair of shorter sides;
• a sealing flap attached to one of said shorter sides;
• a pair of side flaps attached to the longer sides and folded over said front panel along said longer sides;
• a back flap attached to the other shorter side;
• and,
• a filler sheet adhered to said front panel between said folded over side flaps and adjacent said other shorter, said filler sheet having a length substantially equal to the distance between said folded over side flaps.

An envelope, which comprises:

• a rectangular front panel, said front panel having a pair of shorter edges and a pair of longer edges;
• a sealing flap attached to a first of said shorter edges;
• a pair of side flaps attached to said longer edges, said flaps being folded over said longer sides;
• a back flap attached to the other of said shorter edges, said back flap being folded over said other shorter side and adhered to said side flaps;
• a substantially rectangular filler sheet disposed between said back flap and said front panel adjacent said other shorter edge, said filler sheet having length substantially equal to the difference between in length between said longer sides and said shorter sides to define a substantially square card holding envelope portion between said filler sheet and said first shorter edge.

An envelope, which comprises:

• a rectangular front panel defined by a pair of longer sides and a pair of shorter sides;
• a sealing flap attached to a first of said sides;
• a pair of side flaps attached to the sides adjacent said first side;
• a back flap attached to the side opposite said first side;
• and,
• a substantially rectangular filler sheet adhered to front panel adjacent one of said shorter sides, said filler sheet having a width substantially equal the difference in length between said longer sides and said shorter sides to define a substantially square card holding envelope portion between said filler sheet and the other of said shorter sides.

An envelope, which comprises:

• a rectangular front panel, said front panel having a pair of shorter edges and a pair of longer edges;
• a sealing flap attached to a first of said shorter edges;
• a pair of side flaps attached to said longer edges, each of said side flaps having an edge opposite a longer side, said flaps being folded over said longer sides;
• a back flap attached to the other of said shorter edges, said back flap being folded over said other shorter side and adhered to said side flaps;
• a substantially rectangular filler sheet disposed between said back flap and said front panel adjacent said other shorter edge, and between said edges of said folded over side panels, said filler sheet having length substantially equal to the difference between in length between said longer sides and said shorter sides to define a substantially square card holding envelope portion between said filler sheet and said first shorter edge.