MANILA - 1) A semi-bleached chemical sulfate paper. Not as strong as Kraft, but with better printing qualities. 2) Light ecru commonly associated with manila stock.
METAL CLASP - A winged metal device that is affixed to the back of the envelope just below the throat and behind the seal flap. It is bent open by the user, inserted through a reinforced hole in the seal flap, and bent back down to temporarily close the envelope.
