US Patent No. 865,640, granted 10 September 1907 to Hermann Häberer of Rodewisch, Germany, for a method of making embroidery on a removable ground fabric. The ground is woven with bourette (waste silk) threads whose burls keep the fabric from stretching during machine embroidery. After embroidering, the ground is dissolved with caustics such as soda. The patent describes three ground variants (bourette in both warp and weft, weft only, or warp only, the other system being worsted) and gives four claims, with a drawing sheet of three figures.

US Patent No. 741,302, granted October 13, 1903 to Ernest Ulrich Buff of Herisau, Switzerland. It describes embroidery in which tinsel ornaments such as spangles and glass gems are held in pockets or eyes formed in the embroidery, rather than sewn on the front surface. The process embroiders the design on a corrodible material, inserts the ornaments behind perforations with a backing fabric, then etches away the base and trims the backing. The scan has a sheet of drawings (Figs. 1-3) and the specification with four claims.