Offered is a great mid century modernist vintage brooch by Aarre & Krogh It is signed A&K with Sterling Denmark circled around the initials. The brooch measures 1.5" x 1.4". It is shaped like a spiral marked with etched marks around a dome in the center. When I look at the brooch, I am reminded of the Yellow Brick Road and The Emerald City Of Oz. You might imagine the cosmos or a whirlpool.