textile fibers Cendrillon Royal Museum of Mariemont Angel conservation Sculptors lining fabrics Ribbons leavers stitches Jute velvet dress undergarments identifying fibers outline stitch database preventive conservation future considerations Rayon display case khila't accessories Useful Cotton pattern-taking lace Theater costume Underwear filet lace showcase collecting policy protection Identification Comparative items dwarf sprang transportation stored seamstress pants fashion chemicals guidelines Guidelines insurance reconstruction diversity of backgrounds festivals necklace Bodily Memory group identity boxes Belgium collection knitted lace cotton dust cross reference