"STITCHING IS SIZE E, TYPE 308, THREAD UNLESS OTHERWISE SPECIFIED, IAW ASTM D6193;CENTER TYPE 308 STITCH BETWEEN EXISTING SEAM STITCHING;STITCHING SHALL BE BACKSTITCHED 1/2 INCH, UNLESS TURNED UNDER IN A HEM OR SECURED BY OTHER STITCHING;TOLERANCES NOTED ON DRAWING 11-1-7055"