Robison-Anton Thread - Thimbleberries at discount prices! Robison-Anton is the only company that processes and dyes imported filament Rayon and Polyester in one factory and one dye house for optimum control. Their competitors market thread, Robison-Anton dye and finish it right here in America. Robison-Anton's 91 year commitment has been dedicated to serving the customer with the highest possible quality. Robison-Anton is just the best. Try Robison-Anton mercerized 100% Egyptian cotton quilting thread for hand and machine quilting. Thread has a bright, highly lusterous sheen and is smooth running. 500 yards.