Curious patrons who look up upon entering the Box Office lobby at Carnegie Hall will be rewarded with the sight of several stained-glass fanlights above the doors. What they may not know is that these treasures were created by American designer Alice Cordelia Morse, and that the building originally had quite a few more of these windows.

This stylish bookmark is adorned with a vibrant rendering of these immaculate stained-glass fanlights in the Hall’s Box Office lobby.