Envelope for sending correspondence

摘要

The envelope has an opening (1), to receive the correspondence to be sent, and a sealable closure tab (3). This tab is connected to the rest of the envelope by a pre-perforated line. The tab is connected to the correspondence to be sent. The tab has an adhesive strip (5) with a protection strip and detached at the time that the sheets of correspondence are inserted into the envelope in order to attach the sheets of correspondence to the tab.