Impossible to answer without a DETAILED description of ALL markings, barrel length, sights, caliber, accessories, box, papers, etc..
20-200 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.
Requires professional appraisal
765.00
The square of 765 equals 585225. The cosine of 585225 equals -0.70710678118707 for your answer. Hope I helped!
50-250
50-200 or so
100-400 USD or so