silks displaying this damage are easily seen, such as in antique American "crazy quilts", where the silk fibres have disintegrated, whilst the cotton and wool fibres remain in good condition, even after 100 years. A later example displaying damage resulting from tin-weighting is the wedding dress of the future Elizabeth II, then Princess Elizabeth, of the United Kingdom; the fabric, a tin-weighted Chinese silk chosen especially by Queen Elizabeth the Queen Mother, began to rot just 30 years after the dress had been created, with the weight of the dress' embroidery worsening the fabric's condition further. The practice of weighting silk was widespread in the 19th century, and decreased somewhat in the 20th, but is still used to some extent. In the early 20th century, fashion trends had changed substantially and heavier silks fell out of popularity. A lighter silk was preferred and thus weighted silks were less used. An alternative to weighted silk is "organic silk", wherein the sericin is not removed from the fibre before processing, and is instead left in. See also Finishing (textiles) References Further reading Silk