 However, only six guns had been delivered by the end of World War I.Its post-war service is unclear, but it seems that it served in small numbers with the Austrian Army, although it doesn't appear that the Germans placed it into service following the Anschluss, possibly because it used non-standard ammunition.Gander and Chamberlain don't list it in their book, but the older work by Chamberlain and Gander claims it saw service with the German Army as the 8 cm leichte Feldkanone 18(ö).