outline stitch exhibition sewing techniques Preparing Jute portrait Hmong museums opera Royal Collections collecting policy Olympic Games damage selection criteria details mauvine needle lace fibers receipts protection pattern-taking acid-free tag holes interview Queen Juliane Marie fabrics wool Kongedragter gown Collections Trust UK Ramie stockings lace labels Queen Elizabeth II digital 19th century sleeve photos accession jacket media cross stitch storage symbolism dress festivals Twitter Underwear Rayon Heavily altered items interlinking Guidelines personal narrative reconstruction pants Comparative items 18th century indigenous peoples Fleecemaking