In most countries there is a lack of books on the flutes makers. Sometimes you come across degree theses, short essays, videos, or articles in specialized journals that address the subject, but always in a scattered manner and difficult to find when needed. This situation results in that cultural heritage being inaccessible and consequently undervalued. For example, in Italy, there are interesting articles published in the magazine Falaut, but there is no volume on, for example, flute production in Italy between the 19th and 20th centuries. The same is true in Germany, and I am shocked when, as in this case, I find very little information on a maker like August Seidel of Hamburg, who created the flute I am now presenting to you. Unfortunately, I only know that Seidel trained in the Ritterhausen workshop and at a certain point set out on his own. Kempf had one for sale and described it as an excellent instrument. I judge from its exterior that the instrument dates back to the early 20th century. It weighs 480g and is tuned to A435. Open G diesis. Thanks to anyone who can provide further information.