Abstract: A business form intermediate comprises a sheet that is Z-folded first about first and second fold lines to define an outgoing mailer. The business form has first, second and third panels with an outgoing address area on the first face of the third panel, and an O.P.A.S. patch on the first face of the first panel. The patch obscures a PIN number or other confidential information underneath it. Pressure seal adhesive formed along the margins of the paper sheet of the intermediate holds the panels together once Z-folded. Masking is applied on panel faces as necessary in order to obscure all interior information of the mailer. A reply mailer may be constructed from the second and third panels using a window in the third panel overlying reply address indicia on the second panel first face and rewettable adhesive strips on the second panel first face.

Abstract: A business form intermediate comprises a sheet that is C-folded first about a first fold line and then a second fold line to define a mailer. The business form has first, second and third panels with an outgoing address area on the first face of the second panel, and an O.P.A.S. patch on the first face of the first panel. The patch obscures a PIN number or other confidential information underneath it. Pressure seal adhesive formed along the margins of the paper sheet of the intermediate holds the panels together once C-folded. Masking is applied on panel faces as necessary in order to obscure all interior information of the mailer.