Preparing the public machinery 18th century lace accession number ribbon crochet stitches Jute reconstruction heavy metals dust handling vacuum shoes copy lead folk culture indigenous peoples purse Mother Sally knitted lace Useful addresses skirt collecting policy protection tunic Viscose deterioriation Accessories sailor suit material leather Moulins split stitch prints weaving identifying fabrics acid-free tag Hmong unpacking hospital Costume idioms Chinese traditional Costume exhibition policy Leather popular culture St Gall interlinking Weaving Le Lac des cygnes photography Underwear Cendrillon pattern-taking conservation Reconstruction Gallen damage