Hellow all We are investigating metal thread of archaeological costumes. But substrate of metal thread was heavily damaged and we can not identify material of substrate. We think that this sustrate is proteinaceous material. Who know how to identify proteinaceous substrate? Thanks Joonsuk OH Textile conservator The National Folk Museum of Korea 1-1 seojongro Jongro-Gu Seoul Republic of Korea Tel 82 2 3704 3276 Mail [log in to unmask] ________________________________________________________ ¿Ã ÇÑÇØ °í¸¶¿ü´ø »ç¶÷µé¿¡°Ô ¸Þ½ÃÁö º¸³»°í ¼±¹°¹ÞÀ¸¼¼¿ä! - ¸ðµÎ°¡ ÇູÇÑ ¼¼»óÀÌ µË´Ï´Ù. UCC Âü¿©Çϱâ http://kr.fun.kids.yahoo.com/funnybox/thankyou.html