policies marking and labeling knitted garments collecting policy Underwear La Belle au bois dormant linen military uniforms construction heavy metals copy Belgium gown Roméo et Juliette stored Mantas chain-link mesh Royal Danish Collections elasticity personal attitudes nursing schools mechanical aids reconstruction jacket 1970s popular culture dress Reconstruction Raschel fibers diversity of backgrounds Royal Museum of Mariemont cotton weaving 19th century data record damage Jute Acid-free collecting costume stripes Theater digital professional dress crewel stitch materials Laos silk folk culture sewing techniques deterioriation Digital Queen Elizabeth II 20th century Lady in White Viscose clothes conservation stitches cuffs