Envelopes to be good quality machine-fill envelope. Dimensions and quality to be consistent across manufactured batches. Sub 24 special #10 white window envelope, print black on front top only, split gum, open side diagonal seam. Envelope Dimensions: 9 1/2 x 4 1/8”. Windows to be securely affixed. Top edge of window to be flat and free from puckering. Window Size: 1 1/4” X 4”. Window Position: 1/2" from left side, 2 ¼ from top, and ¾ from bottom. Diagonal Seam to be securely glued up to top of seam. Position of internal side seams to give a minimum 5mm (3/16”) clearance or overlap to the edge of any insert. Pre-scored flap crease to enable the envelope flap to open flat. No twisting, curling or distortion evident. No glue see page on interior or exterior of envelope. Paper smoothness: 100-200 Sheffield units. Large printed areas require approval from the Technical Support Dept. Envelopes not meeting the above requirements may affect machine performance...
