Koru Bold Spiral Metal Sign

About the Bold Spiral design

A solid steel disc holds a single open curl that starts as a hairline point near the top rim and sweeps down the left side, swelling into a broad crescent along the bottom. It climbs the right side and rolls back over itself, thinning as it goes. Inside that turn, a tongue of steel curls inward and ends in a small pointed hook just off center, so metal and opening lock together like two nested commas. The rim runs widest around the lower right.