What you have is a 1903/35 Turkish Mauser.
They were bought from Germany in 1903 and use a special-length short action which was used only for a couple of contracts of rifles going to countries which used the 7.65x53 Mauser cartridge.
Your rifle was rebuilt in 1937, at which time the barrel was rebored, rechambered and rerifled for the 7.92x57 cartridge, which we call the 8mm Mauser.
The dead giveaway for the 1903 rifle is the pear-shaped bolt kno

nothing else used it.
MOST of these rifles were lost during the First World War. After the big battle at Gaza, the British were moving too fast on their way North to Beersheba, Jerusalem, Armageddon and Damascus. The Turks were retreating and there were several huge engagements. The British could not spare men or time to police up the battlefield and guard tens of thousands of prisoners, so they turned the Turkish prisoners loose, piled the captured rifles up in huge piles and set them on fire.
This is why so many Turkish Mausers, Turkish Martinis Turkish Sniders and the like are so scarce today.
Nice rifle. I have its twin..... and is ain't fer sale!
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