Brüning & Bongart of Barmen offered both pianos and harmoniums. This is the company's principal harmonium catalogue, featuring a wide range of instruments from leading manufacturers, together with extensive information on the operation, maintenance, and care of these instruments. An excellent and highly informative reference work, the catalogue provides valuable insight into the harmonium market of its period. We offer a PDF copy of this rare catalogue (109 pages) for research and scholarly purposes at a price of EUR 55.00.