50-500 depending on EXACTLY what you have.
20-200 USD or so
Impossible to answer without a DETAILED description of ALL markings, barrel length, sights, caliber, accessories, box, papers, etc..
Today I was told by my gun dealer that my Mauser 6.35 manufactured before January 1914, that the value was between $300 and $350. I would estimate that mine is in very good condition.
100-300 USD
Paul Mauser died on 1914-05-29.
7x57mm
50-500 USD or so
rsi would say the value of the spanish mauser and bayonet value at 695.99 dollars
Tough to answer without seeing pictures of this pistol. Values for pre-'45 examples generally range from 200 to 600usd. The final value would be based on condition and if it is original /as issued.
value depends on overall condition
priceless
Several German pistols used the 7.65mm cartridge. The Walther PP & PPK, the Mauser Hsc are just a couple of them.