material interview cross-stitch photography prints Royal Museum of Mariemont embroidery stitches indigenous peoples 20th century mechanical aids inspiration purse risk allergens necklace undergarments lace shoes Hans Maler giraffe mercury Code of Ethics for Museums Coolmax knitted garments exhibition Theater Kongedragter weaving guidelines clothes masks labels marking and labeling transportation paper sailor suit Lady in White legend elasticity fibers Wool Swan Lake Queen Juliane Marie fashionable dress refugees bar code 1970s Raschel Cotton Blogs Goretex Leaves to Beads linen apron cotton print dress Fleecemaking Rayon moving archival materials holes