care receipts China Prince Frederik documentation personal identity linen weaving apron Planning personal memories Pintrest Royal Museum of Mariemont dangerous checklist policy Acid-free label construction SPECTRUM photography conservation purse festivals kings' garments archives cuffs cap stockings Laos Nylon collar Royal Gala video indigenous peoples Photographs space pants storage textile fibers Lady in White forming manufacture collection weave addresses Silk dwarf Hmong reconstruction storage area Angel 1950s Balmaceda Ribbons Chinese traditional Costume lace Leather Fabrics padding policies contamination