2004-10-30/2019-04-29 - From the OHS PC Database, derived from A Guide to North American Organbuilders by David H. Fox (Organ Historical Society, 1991). - Established as National Automatic Musical Instrument Co. in Grand Rapids, Michigan, c. 1910, manufactured roll playing mechanisms. Sources: David Junchen, Encyclopedia of the American Theatre Organ, Vol. 2 (Pasadena: Showcase Publications, 1990), 912.
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