Best bet is to find a gunsmith
M38
Best thing to do is to get a gunsmith to help you.
A Jennings model 59 9 mm is a type of pistol. Many people try to sell this pistol for anywhere between seventy dollars and over two hundred dollars, the value is determined up the use and care of the pistol.
4 inches including chamber.
What Model 51 pistol or a rifle and what model?
German made.
what model pistol ????
Impossible to answer without knowing name of manufacturer.
about 350 or so
25-100
Take it to a gunsmith and ask for help