Letter-envelope valid for response (Machine-translation by Google Translate, not legally binding)

摘要

"LETTER-ON, VALIDER FOR ANSWER", characterized by being constituted by a sheet of paper with express indication of the four horizontal folds and a vertical one that must be practiced for its use, once used, as well as with the necessary frames for the address of the consignee, sender, etc. both on the front and on the back. (Machine-translation by Google Translate, not legally binding)