Agree with the $3K minty - but this one is a wreck! Only an auction could set the true value for this one.Appears to be 314838 K? Or some variation of the last three digits as the 8 and 3 appear alike in a low dpi image.
Congratulations! You have a well worn example of a PPK issued to the RSHA- the National Security Agency of Nazi Germany. The matched slide to the frame is great, and the matched #2 magazine is icing on the cake. In excellent condition, such a gun would be worth close to or in excess of $3,000. But in this condition, it may be worth perhaps half that amount. Maybe even less as collectors favor condition and will pay for it. Still, you have a piece of history in yours hands.