Abstract: An envelope having two flaps, a front flap and back flap extending respectively from the front and back walls of the envelope pocket. The back flap has approximately the same vertical dimension as the envelope pocket. A set of three scrolling panels are defined on the back flap by fold lines between them. The distal panel has adhesive on its inner face and the proximal panel has a set of apertures that correspond to a set of apertures on the front flap through which the adhesive on the distal panel is wetted for sealing the scrolling back flap into engagement with the front of the envelope pocket. The front flap parks in a forward position until it is ready for use and provides a window (apertures) through which adhesive sealing of the back flap distal panel is made to the envelope pocket. This configuration permits a first mailing of this envelope structure which accomplishes the tasks of a conventional two-way envelope.

Abstract: A one-way, multi-destination and/or multi-postage scheme mailing instrument having multiple addressor, addressee and postage fields which are alternatively covered or exposed individually or as a set through the use of moveable and removable flaps. The mailing instrument enables the user to mail the envelope to different addressees using one of two preprinted addressee information blocks on the mailing instrument and/or to have the envelope show one or another of alternative addressors. Likewise, the user can mail the envelope using preprinted Business Reply Mail postage on the mailing instrument or the envelope can be sealed so that the Business Reply Mail markings are completely covered and a blank field for affixation of a conventional postage stamp is provided thereby avoiding any Business Reply Mail charge to the addressee.