vtg. textile science silk cocoon samples and raw cotton samples. Three sample kits for textile science classes. First is a box from The International Silk Association containing a booklet about silk, two bombyx mori intact silk cocoons, two skeins of silk fiber, a spool of silk thread, and two samples of pure silk fabric. Second box is from International Silk Guild containing 13 intact cocoons and a spool of silk thread. The third contains two samples of cotton bolls, origins unknown.