These are examples of the bolt action rifles used by Turkey from WWI through WWII. The first rifle is a M1888 Commission Rifle produced in Germany in 1890. It was given to Germany's ally Turkey during WWI. This rifle is interesting because it has a barrel shroud that is suppose to help keep the barrel cooler.

The other three rifles are examples of various turkish mausers: the M1893, the M1903, and the m1938.