Don, Here is holster. The strap was torn off and I had a shoemaker add new strap - only portion with the holes, not buckle. Let me know if you got all pictures. Thanks for your help!

Yes,
the pictures are all there.
So far you have a DWM frame and a 1939 Mauser receiver with DWM center link.
A picture of markings on the bottom of the barrel will help(and of any other markings on the barrel, also close ups of the left and right side of the chamber area. Then take it apart and take a picture of the inside of the frame from the top, and a close up of the "well" that the take down lever goes through- there should be some markings there.

The markings on the rear grip are strange for sure, no ideas there.

Someone else can comment on the holster, but it looks ok to me.
Next time you need a holster "fixed" don't let a shoe maker touch it, get it done right by lugerholsterrepair on this forum.
The closure strap should be hand stitched in a specific pattern.

Luger pictures from rstilley - Inside Markings
 

Hi Don, Here are additional pics.

Luger pictures from rstilley - Inside Markings
 

Here are rest of pics.

Don, There are no markings on the barrel. I know it should have serial # but it doesn't. Also, I don't see any markings on the slide plate. Looks to me (as a novice) that the old frame from DMW was used and then someone (maybe Mauser?) refurbished it with Mauser receiver and a replacement barrel and side plate. I assume since it is not all original from DMW that it has little value? Will look forward to your comments. Thank you. Bob

Re-worked/repaired/re-built/re-furbished- yes; by Mauser - No.

Mauser barrels would have some marking on them.

Both barrel and side plate may be of later, commercial, origin. There is no way to figure out when, where, or by whom it was put together as it is today.

Your first comments were right on, you have a mismatched shooter, enjoy it.

Its value is as a shooter, everyone has a different opinion as to "value".

Is it unusual to see a front sight all the way to one side like this?

Yes, but it could be adjusted for POI that much.

Bob,
the well markings confirm a DWM Frame.
The 42 on the left side of the chamber, indicates a Mauser receiver made as a spare- which explains the lack of numbers and lack of proofing on the right.

Had the receiver been assembled or used as a replacement by the Germans, it would likely have received the 4 digits of the serial number on the left, and acceptance and proof marking on the right.

Hi Don, I really appreciate your evaluation of my Luger. Thanks for your help and candor. Will enjoy it for still being a neat firearm, even though it isn't very valuable.

Your Luger's value will be in the pleasure, and enjoyment that it gives you at the range. Many of us here have shooter grade Lugers that get exercised regularly at a pistol range, and really enjoy the experience. To me, every Luger person should have at least one shooter Luger....enjoy!!

Make sure it is CLEAN, reasonably lubricated, uses a good magazine (Mec-Gar aftermarket or FXO type recommended) that seats well into the grip, and when you shoot it, don't have a limp wrist... it needs to be held firmly.

Recommend the use of Winchester White Box 115gr ammo... Do all that and let us know if it is still unreliable.

The barrel is probably 'out of time' (for want of a better description). The so-called 'witness marks' are not a reliable means of centering the front sight base in relation to the receiver. If the barrel is off a little bit one way or the other then the front sight alignment will be off as well.

You can have this checked and re-adjusted by several members of this forum. ;)