Multi-part mailer form assembly

A multi-part mailer assembly, comprising:

• a series of superimposed continuous sheets having at least one aligned marginal side edge along which the sheets are adhesively secured together and copy producing means interposed between the sheets for reproducing information applied to the front sheet on all the underlying sheets, the outer front sheet of the assembly being of paper and the rear sheet being of card material;
• the sheets having corresponding spaced transverse tear lines in registry with one another for separating the sheets into individual multi-part forms;
• the assembly having lines of pin feed perforations extending along its opposite outer marginal side edges through all the sheets at those side edges for feeding the assembly through a printing machine;
• the assembly having an outer longitudinal tear line extending adjacent the secured marginal side edge for separating the sheets from each other and from the line of pin feed perforations at that edge;
• each multi-part form of the assembly having at least three seperable superimposed parts preprinted with predetermined indicia, the three parts including form lengths of a front sheet comprising an address sheet for insertion in a window envelope, a rear sheet comprising a return postcard for separation from the other sheets and for securing to the exterior of an item to be mailed for completion and return by the recipient of the mailed item, and an intermediate sheet comprising a sender's receipt for retention by the sender of a mailed item, the front sheet of each said form having a designated address area on its outer front face and the intermediate and rear sheets having front faces facing the rear of said front sheet which are marked with a corresponding address area in registry with the address area on the front sheet;
• the rear and intermediate sheets of the assembly having additional tear lines for separating a predetermined detachable area of the rear and intermediate part of each form from the remainder of that part, the predetermined area of the intermediate and rear parts carrying the designated address area on their front faces and the rear part having an outer, rear face facing away from the remainder of the form carrying a designated return address area on its detachable area;
• and
• the rear sheet having longitudinal strips of adhesive applied along the rear, outer face outside said predetermined area for detachably securing the predetermined area of the rear part of each form to an outer face of an item to be mailed, the outer face of the rear sheet further having peeloff longitudinal cover strips removably covering the adhesive strips.