[DonVoigt]

I'm not sure what you think is different about the sear safety?

It is not a Belgian police pistol, but a captured German police pistol - one that was re-proofed for commercial sale in or export from Belgium. The "L" in the bombe is for Liege.

Not all German police lugers received the magazine safety. The mag safety was "ordered" after the sear safety, so this piece could have received it "early"- and never returned for the mag safety addition OR it received the Mag safety after 1937, when its use was discontinued.

Any grip markings or signs of removal?

Great catch for the money, and interesting - it has sure had some history, and travels in its time.