Just to clarify one small point. There is really no such thing as a "Turkish Mauser"; the Turks never made Mauser receivers or complete rifles. All the rifles we call "Turkish" started out as Belgian, German or Czech rifles, although they were often rebuilt, reworked and re-marked in Turkey.
Are you certain of this? I've read that the "K.Kale" marked mausers are indeed Turk manufactured receivers made in Kırıkkale, Turkey and started around 1938/1939. Previous models were ordered from others, especially the Germans, and were rebuilt/reworked as mentioned during the 1930s.