calibre is 9x19

 

It looks to have been refinished and scrubbed of a military date. That makes it very difficult to tell mfg dates and anything else. Best I can give is after 1913 (presence of a stock lug).

 

800mm ? Pretty sure that ain't right.

 

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It's a 4" barrel (95-100mm range) - measure it from the muzzle tip to the front of the chamber.

It seems to have good grips and a hold-open, but the older unrelieved sear bar.
The side plate looks like it may be a Swiss or aftermarket replacement on the pistol.
The other side plate looks like it was numbered to the gun.
There are 2 DWM proofs on the receiver, so it was likely an Army pistol.

I would guess it from 1912-13.

 

Thank you very much for your answers.
That's correct, the side plate is Swiss-made. I received the original, but it had a small crack and was therefore replaced. Well spotted!
I have also found out that the DWM cartridges I received with it must also date from those years.
Your expertise is impressive!

 

The right side of the trigger looks interesting, pictures of it out of the frame would be nice to see. Does it have "MADE IN GERMANY" stamped anywhere. Is it still in 9 mm caliber. I would think WW1 Army. The Swiss sideplate is a plus.
mji-1198

 

Thank you for your reply. Do you mean this pictures from out of the frame ? Do you need another picture? No, “Made in Germany” is nowhere to be found. Yes, the calibre is 9 mm.