more help... DWM, sn 2984
 

no other numbers anywhere... has "N" with crown over it and "GERMANY" written on it... also has stock lug. Proof on bottom of bbl where SN would often be found but I can't make it out... didn't pull grips to see if they have numbers

Is there a suffix letter on the frame under the serial number? "GERMANY" indicates a pistol made for export to an English-speaking country and it sounds like a 1920 Commercial or Alphabet Luger but without more data/pictures, I can't be certain.