The Steyr-Hahn is one of the less glamorized pistols used in WWI, despite being made in quite large numbers (250,000-313,000, depending on who you read).
The gun is an interesting mix of features, including bits from the Roth-Steyr M1907 and the early Colt/Browning 1900/1902/1903 pistols.
The gun was the standard pistol for the Austro-Hungarian Empire (albeit supplemented with M1907s, M1898 Rast-Gassers, and more) during the Great War.
It was also purchased in quantity by Romania, Chile, and Bavaria.
We will look at a couple of these variants today, and also an example of the guns converted to 9x19mm for Austrian police forces in the 1940s.