Before revision: The holes may be created by the sewing needles themselves in lighter materials, or by an awlStohlman 1976, p. 4., pricking ironMichael 1993, p. 47., or stitching iron
After revision: The holes may be created by the sewing needles themselves in lighter materials, or by an awlStohlman 1976, p. 4., pricking ironArmitage 2020.Michael 1993, p. 47., or stitching iron