WW1 AUSTRIAN NAVY ARTILLERY GUN DIRECTOR WWI

WW1 Austrian Artillery Gun Director made by Otto A. Ganser of Wien Austria. Otto A. Ganser (Wien) was the distributor or manufacturer of a type of compass bearing M.15. This kind of compass, which is also found in collections such as the Museum of Instruments of the Military Geographic Institute in Florence, has the distinction of presenting, inside the cover, a plate with isogone Central and Eastern Europe in 1915. The date marked the bottom of the back plate is Wien, 9/14 1917 and is serial numbered 1411. Excellent