What Does It Mean?
You are correct!
From our dictionary:
guil•loche
(gi•lOsh'),
—n.
an ornamental pattern or border, as in architecture, consisting of paired ribbons or lines flowing in interlaced curves around a series of circular voids.
(gi•lOsh'),
—n.
an ornamental pattern or border, as in architecture, consisting of paired ribbons or lines flowing in interlaced curves around a series of circular voids.