Owner's Manual
Page 17
.... Some experienced seamstresses prefer a somewhat thinner bobbin thread. Very Heavy Fabrics 24 90 such as dress silks and cottons, sheers, woolens, shirting, dra. Determined by weight of the finished seam is dependent n< Lightweight Fabrics 70 such as heavy TIcKrngz, canvas, overcodting, sailcloth, up to hoistery, 40 E twist to 80 16 ioo...
.... Some experienced seamstresses prefer a somewhat thinner bobbin thread. Very Heavy Fabrics 24 90 such as dress silks and cottons, sheers, woolens, shirting, dra. Determined by weight of the finished seam is dependent n< Lightweight Fabrics 70 such as heavy TIcKrngz, canvas, overcodting, sailcloth, up to hoistery, 40 E twist to 80 16 ioo...