Bernhard, Thank you for noticing my mistake. The correct spelling is Riemer. I have been told that Kratzau (Chrastava) was once a center for several companies who made musical instruments but all are gone now. The city of Chrastava has a website but it is all in Czech so I have not attempted to contact anyone there. Any other information about the town and/or the Riemer Brothers Organ Co. will be greatly appreciated. Carroll Warschak