This is a drawing of a sewing pattern for a garment piece. The drawing depicts a detailed sewing pattern for a part of a pair of pants or another lower garment, with various segments labeled "A", "B", and "A.1" through "C". These sections define how each piece of fabric should be cut and assembled. In the margins, there are written instructions and annotations, specifying how these pattern pieces fit together. The diagram contains dotted and solid lines, indicating where seams and cuts are to be made, as well as notes about the orientation and stitching of different sections like the leg, button placements, and facings.