Over 10,000 concert zithers were made in Washington, Missouri by Austrian immigrant Franz Schwarzer, beginning in l866. Schwarzer’s zithers competed favorably with those of European makers and were sold all over the world. In l873, Schwarzer entered three of his zithers in the Vienna Exposition and was awarded the “Gold Medal of Progress”, the highest award of the fair, for his entry. Schwarzer died in 1904. The Washington Historical Society maintains an exhibit of a dozen Schwarzer zithers and other instruments from his factory at its museum at Fourth and Market Sts. in Washington, Missouri.