Philatelic envelope (Machine-translation by Google Translate, not legally binding)

摘要

Philatelic envelope, characterized in that in the regulatory place for the insertion of the postage stamp, that is in the upper right corner, a climbing is determined that forms one or several rectangles, of which one, end of them, presents a solution in the climbing of its external side, solution constituted by a split cleft. (Machine-translation by Google Translate, not legally binding)