From the OHS PC Database, derived from A Guide to North America Organ Builders by David H. Fox (Organ Historical Society, 1991). -- Active Schwarzach, Austria 1950's-80's & more. Orgelbau Rieger GmbH & Co. KG at A-6858 Schwarzach/Vorarlberg, Austria. Founded by the late Joseph von Glatter-Goetz after his emigration from Czechoslovakia.