PPK is short for Polizeipistole kurz (short), not Kriminal. It was a shortened, more compact version of the PP (Polizeipistole) from Walther.

(The right Schäferhund looks more like a hyena than like a German shepherd!)

sanitaeter said:

PPK is short for Polizeipistole kurz (short), not Kriminal. It was a shortened, more compact version of the PP (Polizeipistole) from Walther.

(The right Schäferhund looks more like a hyena than like a German shepherd!)

@sanitaeter

If you're trying to correct the artist, you should follow the source link and do it on their pixiv page. Few artists read comments on Danbooru.