exhibition public cuffs cap stockings digital dress Prince Frederik popular culture Museo Histórico Nacional chemicals wedding dress ballet copy burn test leather receipts buttonhole stitch Nutcracker stem stitch mannequins accessories lead Nylon refugees interview transport photography 20th century accessioning Identification vacuum holes Acid-free exhibition space lace Preparing the public sewing techniques pattern-taking fashionable dress fabrics knitted garments crewel stitch Flannel ribbon transportation Swan Lake Cendrillon heavy metals Lace construction pest management mercury marking and labeling long and short stitch shoes Ponchos danger knit Coolmax angel