Need Help Interpreting Walther Markings

[five0nda9s]

Hi, I am new to the forum and I was wondering if anyone is familiar with Markings found on Walther Handguns

I own a Walther PP .32 Cal. pistol and I need to know when it was made and how much it is worth, etc.

The following is a list of the markings on the gun:
- Interarms, Alex VA on left side of frame above trigger guard
- Made in W. Germany on left side of slide above Interarms logo
- Nds logo inside of a square on left side of frame in between trigger and grip as well as on right side of slide in front of ejection opening
- Eagle with an "N" underneath on silver chamber piece visible through opening in slide "Newer Eagle Design"
- An antler logo with the letters "HH" in front of it to the left of the eagle still on chamber piece
- The serial number is 456506 which is very confusing because everyone i have talked to has told me that the PP models started at number 750000 and when they passed number 1 million, they all had the letter P after the Serial Number. My gun does not have a P after Serial Number

I appreciate any information anyone might be able to supply me with. Thank you, and i am looking forward to your posts.