Creating the Eyebrow Arch

I've always loved the "eyebrow" form in buildings.  It's a three centered arch with gentle curves, here forming and archway which is quite large yet welcoming and not overly grand.  Our curve is formed by three layers of decorative woodwork and a gutter that curves vertically.   A gutter like this is a special fabrication built in Atlanta which had to exactly match and perfectly offset the curves of the woodwork.  With a little luck, it looks easy.