Located at the Apostolic Church history archive in Brockhagen, Germany. * indicates a set of unlabeled muted stops above the respective listed ones.. Has a B/Cbreeak the Couplers break at E/F. Date is based of estimation by make (they are still in business)

Updated Company information: - L.M. Beyer founded the company in Wiehe, Thüringen/Thuringia, in 1920. The company was moved to Vlotho/Westphalia in 1928. The current buildings/workshops in Brackwede near Bielefeld (Arthur-Ladebeck-Strasse 185) were acquired in 1933.
L.M.s'' sons Otto, Moritz and Franz joined the company.

- In 1945, L.M. Beyer dies, Franz does not return from the war. Moritz and Otto continue instrument production. It seems that from this time, the company name on the instruments is just "Beyer".

- In 1975, Erhard Beyer, youngest son of Moritz, takes over the company.
Business operations now concentrate on piano restaurations/tuning.

- In 2002, Sebastian Beyer, son of Erhard, joins the company, making this a four-generation business.

- The company has not produced any pressure instruments, contrary to the description in the database. They built around 3,000 suction instruments.