Definitions for "DIAGONAL SEAM"
Seam style frequently used in commercial open-side envelopes and announcement, invitation and baronial envelopes.
Most commercial envelopes have a diagonal seam. The seams run at an angle from the bottom to the throat of the envelope. See our Envelope Anatomy page for more details.
Seam style frequently used in Commercial Open Side envelopes, invitation and baronial envelopes. It's name is derived from the seam running from the back corner of the envelope diagonally to the middle.