old wood cone spools - vintage sewing thread, Sylko type nylon in jewel colors
Best 3000M Polyester Yards Sylko Cotton Thread Black And White Industrial String DIY Strong And Durable Clothes Sewing Accessories From Kufire, $3.1 | DHgate.Com
Coats - Sylko - Polyester Thread - 800-B7983 (Colonial Blue) | Sit n' Sew Fabrics | Sit n' Sew
40 Coats Sylko Polyester Embroidery Thread- Cherokee Red, Deep Violet /Lot Of 2 | eBay