 A.G. „Weser” was one of the great German manufacturers of warships, besides Blohm & Voss, the imperial shipyards in Kiel, Danzig and Wilhelmshaven, which later became Kriegsmarinewerft Wilhelmshaven, and Schichau Shipyard Danzig.This was contrary to the second great Bremen shipyard Bremer Vulkan, which with exception of both World Wars, only produced civilian ships and started warship-building except war-times only in the early 1980's.A very first important warship-order came from the "Kaiserliche Marine", between 1875 and 1884 altogether 29 gunboats were built.