Walther P38 handgun

Question
Olympia, Washington.
Basically I am looking for information on the handgun I found in my father's estate.  It is stamped on the left slide "P38 AC'" and "533" is stamped on the slide, and body.  On the trigger guard "E" and a symbol is stamped on the left side and "A6" is stamped on the right.  Nowhere on it does it say "Walther" but that is how I remember my father referring to it.  I would like to know if it has value, and what caliber ammunition it takes, should I decide to use it rather than sell it.  Thank you.

Answer
Mr. Partlow,

As stated in my profile, "I CAN NOT identify antique guns or those that are old and out-of-production."

I have no idea what the numbers mean.  Your best bet would likely be a collector of antique firearms, or Walthers specifically.

If the gun is indeed a Walther, and P38 is stamped on it, you likely have a Walther P-38, so called for its year of adoption by the German military.  This pistol replaced the one produced by Georg Luger.

The Walther P-38 was developed for the 9mm Luger cartridge.  It was not a particularly robust design, although the locking mechanism has been copied by Beretta and is used in the M9 currently in use by the US military.

The gun was used by the Austrian military until it was replaced by the then-new Glock in the early 80's.

If your gun is a Nazi era gun, it certainly is worth something, but you'd need to take it to a dealer in curios and antiques to find out.