Celtic knot brooch- excellent vintage condition

This gold tone Celtic knot is lovely. Signed Sol D’or. Measures about 1.5 inches. It’s possible it’s gold filled but I can’t say that for sure. I do my best to capture as much detail in photos as I can. That’s why there’s so many angles. Most of my pieces are decades old. They have wear/natural aging . Please zoom in to pictures so you’re able to see it all.