Luger with threaded barrel

[porthole]

Hello,

I have searched all over looking for something similar to what I have. And I am confused between all the different types of Luger's, Police, commercial etc.

Also, I don't see a year that I read about so much.

The barrel is threaded. I have seen one picture on the net that had a front sight that slipped over the threads and was locked on with a spring loaded tab, that indexed into a groove in the barrel (I think).

This barrel has no groove, although after I took the pictures I noticed that on the top of the boss behind the threads, it appears someone hit it with a file.

The barrel, side and front are all numbered the same. All the small parts, both inside and out are also the same, but don't match the frame.

I also found some new marks that I thought were damage until a closer look. They appear to be stamps, and there are a couple of tiny stamps on the upper left side of the barrel near the side plate numbers.

More interest in just some history as opposed to value. I'm assuming the value is limited anyway without matching numbers and accessories.

I think the pictures are in the requested order from the sticky thread.