English: Advertisement for stalwart Grand Pianos by Th. Mann & Co. in Bielefeld. It was published in the Zeitschrift für Instrumentenbau in issue number 18, 21st of March 1911. The advertisement consists of two seperate blocks, surrounded each by a fine and in the corners rounded line. The upper block takes two thirds of the entire space and shows the front part of a Grand Piano. The lit is oben and there it reads: "Grand Pianos", followed by the prussian crest and in smaller font informations about a registered design patent and finished by "Upright Pianos". Name and location of the company "Th. Mann & Co., Bielefeld" can be read above the picture. In smaller letters beneath the picture it reads: "founded 1836". The second block consists only of text, which reads: "Robust tuning for tropics and rooms with central heating. These instruments are characterized by sonority and tonal beauty as well as uniformity in all situations."