I recently acquired a Walther PP and trying to figure its age, value, etc.

What do I look for?  The markings that I've located are as follows;

Left slide - Walther - Carl Walther - Waffenfabrik Ulm./Do. - Modell PP-Cal 9mm Kurz

Right slide - (serial) 1689XX P   --   Interarms Alexandria, Va

Left side Chamber - GERMANY  --  IA CO SAC CA

Right Side Chamber - WALTHER

Right side grip frame - (serial) 1689XX P


Don't have a way to post pics but can email/text.  

Thanks for your help

Post WWII probably imported back in the 80's

Yep, Interarms. 70s or 80s. Still a good gun. Well made and reliable to shoot.

I like it but I already have one...this one is gonna go up for sale.  I got it as a package trade deal and would like to hear thoughts on its value?

Thanks for the help!