Canadian Laos 18th century white cotton Jute bar code SPECTRUM reconstruction sleeve storage empress lace fibers Manneken-Pis stem stitch fatal garter ballet sailor suit burn test documentation Flax photographs collective identity embroidery knit Mother Sally identification of lace construction warp braiding technique Royal Museum of Mariemont reused clothes interlacing and intertwining 1970s customs pants Chile 19th century materials transportation silk Code of Ethics for Museums pattern-taking portrait cross stitch dress marriage cotton folk dress midget tradition split stitch Twitter display case chemical lace patterns angel Rosenborg Castle Hmong accession number