St Justin, Pewter Quadrant Knot T-Bar Cufflinks The Celts used knotwork to decorate many of their artifacts. To them, the intricate patterns woven into spirals and knots symbolise the continuity of life. The Celts used knotwork to decorate many of their artifacts. To them, the intricate patterns woven into spirals and knots symbolise the continuity of life. Diameter: 17mm Supplied in a satin and velvet-lined gift box. Pewter with embossed design and nickel-plated T-bar. - Ideal 10th Wedding Anniversary Present