arsenic stripes tunic Royal Museum of Mariemont filet lace Queen Juliane Marie Weaving acid-free tag Royal Danish Collections weaving contagious residue nursing schools Nutcracker wedding dress leather collecting policy chemical lace bobbin lace exhibition fashion cross-stitch Jute prints Terminology burn test hospital mercury storage Shanghai 20th century Useful Taoist jacket festivals skirt Photographs warp pattern-taking feelings Balmaceda symbolism crucifix Soviet Epoch digital white cotton Rosenborg Castle miser's purse 19th century Padding forming materials mauvine purse transport lace wool Prince Frederik's coat knitted lace unpacking WildWorks museums