20th century collection 19th century bar code Thailand crucifix outline stitch acid-free tag Nylon silk pattern chemical lace Taoist jacket chain stitch construction exhibition conservation fabrics Flax Knitting fibers digital knitted lace Le Lac des cygnes donor lace khila't Comparative items inspiration reproduction shoes policy needle lace midget Lace textile technique Kensington Palace personal attitudes crewel stitch display case tradition Ramie narrative weaving Polyester packing split stitch hair Preparing the public personal memories white cotton protection Paco Rabanne floral ornaments symbolism health safety apron reused clothes tunic embroidery