Abstract: Apparatus for inserting a stack of items into an envelope. A plurality of bank checks are serially fed, counted, and stacked at a receiving and stacking station while simultaneously an envelope is fed to an insertion station. A counter visually displays the number of the counted checks and after a predetermined number have been fed, counted, and stacked, a bank statement is fed and folded and simultaneously an enclosure is fed to the stack of checks at the stacking station by pairs of endless transport belts. A document depressor exerts force downwardly upon the folded statement, enclosure, and plurality of checks, pressing those items into a compressed stack whereupon a ram carrying an adjustable finger moves forward between the document depressor and compressed stack of items. The finger carried by the ram abuts against the long edge of the stack to insert the stack into the envelope at the insertion station.