One of the smaller mysteries waits to be solved. About 1930, Welte
sold record changers and similar gear, but surely not from their own
production. The German Phonomuseum says there are no record changers
known from Germany before 1949, but it could have been a Swiss, USA
or British product. This will be a nice question for the international
readers of the MMD.
Gerhard Dangel - Augustinermuseum