Well, I managed to pick up an Interarms 'Walther' PPK this weekend. I'm a bit confused, as the slide is clearly marked .32 ACP, and it has a 'B' prefix serial number, indicating .32 ACP, but the frame assembly matches that of the .22lr models (Wrap-around wood-grip covering the mainspring). Anyone have any ideas as to what I've got here? The fit/finish is quite good, minus a couple chips in the grip.