Koru Double Spiral Metal Sign

About the Double Spiral design

Two spirals share this disc, one of black steel and one of white gap, winding into each other around a small hooked curl at the center. The white channel makes roughly two and a half turns outward, swelling slightly as it goes, then narrows to a fine point at the lower right. There the outer steel band thins to meet it, so the round edge ends in a tapering tail instead of closing into a full circle.