The front sight may have been trimmed a bit from it's original shape,,might just be the pic.
The left grip might be a very worn orig,,maybe even a later production than the gun.
Looks like someone had some problems getting the trigger pin back in the gun after disassembly or maybe it had a problem with backing out and has been staked to hold it in place.
Just a couple things I see,,and they might just be as a result of the pics too..
Values,,I'm not in step with much anymore.
I would scan over Simpsons long list of Walther PP pistols. They include pre-war, wartime and postwar and all sorts of condition and variations.
Keep in mind they are priced at the upper end generally of the retail trade but they are still a good way to collectively see a good number of the guns and compare values and details.
They do turn a lot of Walthers ,
https://simpsonltd.com/
Put in 'Walther Model PP' in the Search
Nice pistols and very comfortable shooters especially in 32.