This single-manual American pipe organ stands 11 feet, 9 inches tall. Six original stops; three stops and pedalboard added by Thomas Dieffenbach in 1884. Polychromed case pipes painted by Thomas Dieffenbach's nephew, Jacob Dieffenbach. The Dieffenbach organ was built for Zion Lutheran and Reformed Church near Orwigsburg, Pennsylvania, for $300, and was dedicated on October 16, 1808.