[Watson99]

This mag is correct for this particular pistol. One of the last "banner only" mags. It does have sort of a parked finish. This is the last variation before they went to the model with caliber m/m stamp which happened around 1940. Not an easy mag to find to be honest as they were made for relatively short time. I have a bunch of original pre-1945 PPK magazines and only one that would be correct for the OP's pistol. It does have a flat bottom plate and has exactly the same finish. Most "banner only" magazines you find out there are blued.

 

[Watson99]

I think the price was OK . $1600. yes it has the loaded chamber indicator

Not a bad price assuming that the slide has a matching number and decocker works. Yeah, it's hard to find one without the LCI this late into the production run. Pre-'41 short tang PPKs are my favorite... Get a post-War two-piece grips, if you intend to shoot it, the original grip is fragile and can crack easily, these things are pretty snappy when it comes to the recoil...

 

[Watson99]

You might as well fess up and tell us the damage done to your wallet on this one... I'd say '39-'40ish. Very nice indeed. Original and correct mag too... This is the cutest hand slicer ever made, I just love them, short tang and all. Does it have a signalstift or somehow you got lucky?