continuous series of packets including teeth of the inserts and the sheets of carbon paper between the removable inserts

摘要

Assembly of stuffed envelopes interconnected along transverse lines of weakening, front and back plies closed on all sides forming each envelope, insert and transfer material within each envelope, the transfer material being attached to a first removable tear strip located at one end of the envelope, the insert material being attached to a portion of the envelope, a second removable tear strip provided for freeing the insert from the envelope, the transfer material being removable upon the removal of the first tear strip following the printing operation, and the envelope being resealed before being sent out to the intended recipient whereupon it may be opened and the insert material freed from the envelope upon removal of the second tear strip.