Abstract: An envelope which, for the purposes of delivery, may be hung over a door knob. The envelope comprises an envelope portion provided with a flap for closing that envelope portion, and a hanging portion from which the envelope portion is separable, the hanging portion being formed with an aperture from which a slit radiates and provided with a flap for sealing across the slit once the envelope has been applied (by its aperture) to the door handle.

Abstract: Apparatus for processing batchs of remittance and transaction documents by operating an encoder in accordance with a program stored in memory. A central processor unit sequentially generates a plurality of groups of data signals in accordance with the program. A card or document reader reads information stored on a transaction document and transmits the information through a card reader interface to the central processor unit. A switch control interface senses the states of a plurality of switches indicative of control and endorsement information and transmits the information to the central processor unit. A display interface causes a display to display numeric and control information stored on the transaction document in response to one of the groups of central processor unit data signals.