accession number fashion photography arsenic symbolism moving skirt lace Weaving Prince Frederik's coat silk labels Identification cotton Preparing the public museum China empress knit protest dress Leaves to Beads cross reference 1962 mannequins split stitch Munich Coolmax Marking weaving care white cotton French knot Goretex exhibition embroidery stitches deterioriation Gallen danger packing Belgium Taoist jacket selection criteria clothes Moulins transporting Blogs date Storing wool story heavy metals storage archives St Gall Nutcracker Quick Response tatting lace fashionable dress apron 19th century