On the occasion of the 100th anniversary of the company M. Welte & Söhne from Freiburg, this book or exhibition catalogue 100 Years of Welte-Mignon was published by the Augustinian Museum. The book contains a lot of detailed information and articles about the work of the Welte company. This book provides probably the most comprehensive insight into the Welte company, which in 1904 launched the world sensation - the Welte-Mignon cabinet - the first reproduction instrument of this quality on the market.