My grandfather picked up a Mauser 1910 .25 when he was in Italy during WWII. He also has the uniform holster that goes with it. To the best of his knowledge it came from an officer in the Wehrmacht but admittedly, he said there was so much stuff available, the true origin before it reached the person he got it from is unverifiable.
Fortunately, it was stored much better than his other pistols and it in fantastic condition. I had to remove a little bit of surface spotting from rust but other than it is tip top and has complete matching serial numbers on all marked parts. I took it to the range today with my father, who had fond memories of firing it while growing up.
It fired like a champ. No FTF's and spot on accurate. The sights are tiny so I wouldn't want to have to aim fast at distance but its fun to shoot. Almost no recoil, at least not after firing a .40 for a while. I would definitely consider it reliable as a pocket gun although because of its history, its going in the safe, only to come out for stories and the range
Of course, its no good without pics.